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Finding the Fourth Proportional to 84,925.86, 127,380.96 and 28,759.52

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Solution

The fourth proportional to 84,925.86, 127,380.96 and 28,759.52 is: 43,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,925.86 : 127,380.96 = 28,759.52 : x
  2. Step 2: Convert to fraction form
    84,925.86/127,380.96 = 28,759.52/x
  3. Step 3: Cross multiply
    84,925.86x = 127,380.96 × 28,759.52
  4. Step 4: Simplify right side
    84,925.86x = 3,663,414,629.83
  5. Step 5: Solve for x
    x = 3,663,414,629.83/84,925.86
  6. Step 6: Final answer
    x = 43,136.62

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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.