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Finding the Fourth Proportional to 80,666.91, 121,024.98 and 41,251.71

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Solution

The fourth proportional to 80,666.91, 121,024.98 and 41,251.71 is: 61,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,666.91 : 121,024.98 = 41,251.71 : x
  2. Step 2: Convert to fraction form
    80,666.91/121,024.98 = 41,251.71/x
  3. Step 3: Cross multiply
    80,666.91x = 121,024.98 × 41,251.71
  4. Step 4: Simplify right side
    80,666.91x = 4,992,487,377.72
  5. Step 5: Solve for x
    x = 4,992,487,377.72/80,666.91
  6. Step 6: Final answer
    x = 61,890.15

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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.