Home / 87,739.20-131,560.20-37,810.80

Finding the Fourth Proportional to 87,739.20, 131,560.20 and 37,810.80

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Solution

The fourth proportional to 87,739.20, 131,560.20 and 37,810.80 is: 56,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,739.20 : 131,560.20 = 37,810.80 : x
  2. Step 2: Convert to fraction form
    87,739.20/131,560.20 = 37,810.80/x
  3. Step 3: Cross multiply
    87,739.20x = 131,560.20 × 37,810.80
  4. Step 4: Simplify right side
    87,739.20x = 4,974,396,410.16
  5. Step 5: Solve for x
    x = 4,974,396,410.16/87,739.20
  6. Step 6: Final answer
    x = 56,695.26

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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.