Home / 87,707.92-131,478.36-28,501.96

Finding the Fourth Proportional to 87,707.92, 131,478.36 and 28,501.96

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Solution

The fourth proportional to 87,707.92, 131,478.36 and 28,501.96 is: 42,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,707.92 : 131,478.36 = 28,501.96 : x
  2. Step 2: Convert to fraction form
    87,707.92/131,478.36 = 28,501.96/x
  3. Step 3: Cross multiply
    87,707.92x = 131,478.36 × 28,501.96
  4. Step 4: Simplify right side
    87,707.92x = 3,747,390,957.59
  5. Step 5: Solve for x
    x = 3,747,390,957.59/87,707.92
  6. Step 6: Final answer
    x = 42,725.80

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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.