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Finding the Fourth Proportional to 71,562.28, 106,820.24 and 66,358.12

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Solution

The fourth proportional to 71,562.28, 106,820.24 and 66,358.12 is: 99,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,562.28 : 106,820.24 = 66,358.12 : x
  2. Step 2: Convert to fraction form
    71,562.28/106,820.24 = 66,358.12/x
  3. Step 3: Cross multiply
    71,562.28x = 106,820.24 × 66,358.12
  4. Step 4: Simplify right side
    71,562.28x = 7,088,390,304.35
  5. Step 5: Solve for x
    x = 7,088,390,304.35/71,562.28
  6. Step 6: Final answer
    x = 99,052.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.