Home / 87,686.48-131,432.88-55,996.80

Finding the Fourth Proportional to 87,686.48, 131,432.88 and 55,996.80

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Solution

The fourth proportional to 87,686.48, 131,432.88 and 55,996.80 is: 83,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,686.48 : 131,432.88 = 55,996.80 : x
  2. Step 2: Convert to fraction form
    87,686.48/131,432.88 = 55,996.80/x
  3. Step 3: Cross multiply
    87,686.48x = 131,432.88 × 55,996.80
  4. Step 4: Simplify right side
    87,686.48x = 7,359,820,694.78
  5. Step 5: Solve for x
    x = 7,359,820,694.78/87,686.48
  6. Step 6: Final answer
    x = 83,933.36

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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.