Home / 87,245.04-130,609.22-53,857.76

Finding the Fourth Proportional to 87,245.04, 130,609.22 and 53,857.76

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Solution

The fourth proportional to 87,245.04, 130,609.22 and 53,857.76 is: 80,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,245.04 : 130,609.22 = 53,857.76 : x
  2. Step 2: Convert to fraction form
    87,245.04/130,609.22 = 53,857.76/x
  3. Step 3: Cross multiply
    87,245.04x = 130,609.22 × 53,857.76
  4. Step 4: Simplify right side
    87,245.04x = 7,034,319,102.21
  5. Step 5: Solve for x
    x = 7,034,319,102.21/87,245.04
  6. Step 6: Final answer
    x = 80,627.15

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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.