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Finding the Fourth Proportional to 60,774.30, 90,861.75 and 51,517.62

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Solution

The fourth proportional to 60,774.30, 90,861.75 and 51,517.62 is: 77,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,774.30 : 90,861.75 = 51,517.62 : x
  2. Step 2: Convert to fraction form
    60,774.30/90,861.75 = 51,517.62/x
  3. Step 3: Cross multiply
    60,774.30x = 90,861.75 × 51,517.62
  4. Step 4: Simplify right side
    60,774.30x = 4,680,981,109.04
  5. Step 5: Solve for x
    x = 4,680,981,109.04/60,774.30
  6. Step 6: Final answer
    x = 77,022.38

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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.