Home / 87,700.80-131,536.60-31,529.48

Finding the Fourth Proportional to 87,700.80, 131,536.60 and 31,529.48

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Solution

The fourth proportional to 87,700.80, 131,536.60 and 31,529.48 is: 47,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,700.80 : 131,536.60 = 31,529.48 : x
  2. Step 2: Convert to fraction form
    87,700.80/131,536.60 = 31,529.48/x
  3. Step 3: Cross multiply
    87,700.80x = 131,536.60 × 31,529.48
  4. Step 4: Simplify right side
    87,700.80x = 4,147,280,598.97
  5. Step 5: Solve for x
    x = 4,147,280,598.97/87,700.80
  6. Step 6: Final answer
    x = 47,288.97

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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.