Home / 68,919.49-95,111.19-38,710.14

Finding the Fourth Proportional to 68,919.49, 95,111.19 and 38,710.14

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Solution

The fourth proportional to 68,919.49, 95,111.19 and 38,710.14 is: 53,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,919.49 : 95,111.19 = 38,710.14 : x
  2. Step 2: Convert to fraction form
    68,919.49/95,111.19 = 38,710.14/x
  3. Step 3: Cross multiply
    68,919.49x = 95,111.19 × 38,710.14
  4. Step 4: Simplify right side
    68,919.49x = 3,681,767,480.47
  5. Step 5: Solve for x
    x = 3,681,767,480.47/68,919.49
  6. Step 6: Final answer
    x = 53,421.28

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Half scale
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Double scale
Find fourth proportional to 68,920.49, 95,112.57 and 38,711.14
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.