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Finding the Fourth Proportional to 84,766.91, 127,099.94 and 28,593.20

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Solution

The fourth proportional to 84,766.91, 127,099.94 and 28,593.20 is: 42,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,766.91 : 127,099.94 = 28,593.20 : x
  2. Step 2: Convert to fraction form
    84,766.91/127,099.94 = 28,593.20/x
  3. Step 3: Cross multiply
    84,766.91x = 127,099.94 × 28,593.20
  4. Step 4: Simplify right side
    84,766.91x = 3,634,194,179.19
  5. Step 5: Solve for x
    x = 3,634,194,179.19/84,766.91
  6. Step 6: Final answer
    x = 42,872.80

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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.