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Finding the Fourth Proportional to 72,154.71, 99,545.29 and 41,934.62

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Solution

The fourth proportional to 72,154.71, 99,545.29 and 41,934.62 is: 57,853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,154.71 : 99,545.29 = 41,934.62 : x
  2. Step 2: Convert to fraction form
    72,154.71/99,545.29 = 41,934.62/x
  3. Step 3: Cross multiply
    72,154.71x = 99,545.29 × 41,934.62
  4. Step 4: Simplify right side
    72,154.71x = 4,174,394,052.97
  5. Step 5: Solve for x
    x = 4,174,394,052.97/72,154.71
  6. Step 6: Final answer
    x = 57,853.38

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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.