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Finding the Fourth Proportional to 60,491.52, 90,755.70 and 30,930.08

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Solution

The fourth proportional to 60,491.52, 90,755.70 and 30,930.08 is: 46,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.52 : 90,755.70 = 30,930.08 : x
  2. Step 2: Convert to fraction form
    60,491.52/90,755.70 = 30,930.08/x
  3. Step 3: Cross multiply
    60,491.52x = 90,755.70 × 30,930.08
  4. Step 4: Simplify right side
    60,491.52x = 2,807,081,061.46
  5. Step 5: Solve for x
    x = 2,807,081,061.46/60,491.52
  6. Step 6: Final answer
    x = 46,404.54

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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.