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Finding the Fourth Proportional to 66,545.40, 99,812.40 and 24,423.78

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Solution

The fourth proportional to 66,545.40, 99,812.40 and 24,423.78 is: 36,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,545.40 : 99,812.40 = 24,423.78 : x
  2. Step 2: Convert to fraction form
    66,545.40/99,812.40 = 24,423.78/x
  3. Step 3: Cross multiply
    66,545.40x = 99,812.40 × 24,423.78
  4. Step 4: Simplify right side
    66,545.40x = 2,437,796,098.87
  5. Step 5: Solve for x
    x = 2,437,796,098.87/66,545.40
  6. Step 6: Final answer
    x = 36,633.58

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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.