Home / 87,248.85-130,873.78-31,091.12

Finding the Fourth Proportional to 87,248.85, 130,873.78 and 31,091.12

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Solution

The fourth proportional to 87,248.85, 130,873.78 and 31,091.12 is: 46,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,248.85 : 130,873.78 = 31,091.12 : x
  2. Step 2: Convert to fraction form
    87,248.85/130,873.78 = 31,091.12/x
  3. Step 3: Cross multiply
    87,248.85x = 130,873.78 × 31,091.12
  4. Step 4: Simplify right side
    87,248.85x = 4,069,011,731.14
  5. Step 5: Solve for x
    x = 4,069,011,731.14/87,248.85
  6. Step 6: Final answer
    x = 46,636.85

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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.