Home / 85,288.17-127,842.89-47,793.27

Finding the Fourth Proportional to 85,288.17, 127,842.89 and 47,793.27

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Solution

The fourth proportional to 85,288.17, 127,842.89 and 47,793.27 is: 71,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,288.17 : 127,842.89 = 47,793.27 : x
  2. Step 2: Convert to fraction form
    85,288.17/127,842.89 = 47,793.27/x
  3. Step 3: Cross multiply
    85,288.17x = 127,842.89 × 47,793.27
  4. Step 4: Simplify right side
    85,288.17x = 6,110,029,520.38
  5. Step 5: Solve for x
    x = 6,110,029,520.38/85,288.17
  6. Step 6: Final answer
    x = 71,639.82

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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.