Home / 87,556.13-131,310.27-31,385.76

Finding the Fourth Proportional to 87,556.13, 131,310.27 and 31,385.76

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Solution

The fourth proportional to 87,556.13, 131,310.27 and 31,385.76 is: 47,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,556.13 : 131,310.27 = 31,385.76 : x
  2. Step 2: Convert to fraction form
    87,556.13/131,310.27 = 31,385.76/x
  3. Step 3: Cross multiply
    87,556.13x = 131,310.27 × 31,385.76
  4. Step 4: Simplify right side
    87,556.13x = 4,121,272,619.76
  5. Step 5: Solve for x
    x = 4,121,272,619.76/87,556.13
  6. Step 6: Final answer
    x = 47,070.07

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1.5x scale

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.