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Finding the Fourth Proportional to 45,441, 68,116.14 and 19,160.28

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Solution

The fourth proportional to 45,441, 68,116.14 and 19,160.28 is: 28,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,441 : 68,116.14 = 19,160.28 : x
  2. Step 2: Convert to fraction form
    45,441/68,116.14 = 19,160.28/x
  3. Step 3: Cross multiply
    45,441x = 68,116.14 × 19,160.28
  4. Step 4: Simplify right side
    45,441x = 1,305,124,314.92
  5. Step 5: Solve for x
    x = 1,305,124,314.92/45,441
  6. Step 6: Final answer
    x = 28,721.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.