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Finding the Fourth Proportional to 73,304.97, 109,990.25 and 42,140.22

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Solution

The fourth proportional to 73,304.97, 109,990.25 and 42,140.22 is: 63,229.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,304.97 : 109,990.25 = 42,140.22 : x
  2. Step 2: Convert to fraction form
    73,304.97/109,990.25 = 42,140.22/x
  3. Step 3: Cross multiply
    73,304.97x = 109,990.25 × 42,140.22
  4. Step 4: Simplify right side
    73,304.97x = 4,635,013,332.86
  5. Step 5: Solve for x
    x = 4,635,013,332.86/73,304.97
  6. Step 6: Final answer
    x = 63,229.18

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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.