Home / 87,772.80-131,659.20-52,343.40

Finding the Fourth Proportional to 87,772.80, 131,659.20 and 52,343.40

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Solution

The fourth proportional to 87,772.80, 131,659.20 and 52,343.40 is: 78,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,772.80 : 131,659.20 = 52,343.40 : x
  2. Step 2: Convert to fraction form
    87,772.80/131,659.20 = 52,343.40/x
  3. Step 3: Cross multiply
    87,772.80x = 131,659.20 × 52,343.40
  4. Step 4: Simplify right side
    87,772.80x = 6,891,490,169.28
  5. Step 5: Solve for x
    x = 6,891,490,169.28/87,772.80
  6. Step 6: Final answer
    x = 78,515.10

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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.