Home / 71,386.92-98,512.49-39,555.14

Finding the Fourth Proportional to 71,386.92, 98,512.49 and 39,555.14

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Solution

The fourth proportional to 71,386.92, 98,512.49 and 39,555.14 is: 54,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,386.92 : 98,512.49 = 39,555.14 : x
  2. Step 2: Convert to fraction form
    71,386.92/98,512.49 = 39,555.14/x
  3. Step 3: Cross multiply
    71,386.92x = 98,512.49 × 39,555.14
  4. Step 4: Simplify right side
    71,386.92x = 3,896,674,643.36
  5. Step 5: Solve for x
    x = 3,896,674,643.36/71,386.92
  6. Step 6: Final answer
    x = 54,585.27

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Half scale
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Double scale
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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.