Home / 87,560.10-131,300.19-31,378.50

Finding the Fourth Proportional to 87,560.10, 131,300.19 and 31,378.50

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Solution

The fourth proportional to 87,560.10, 131,300.19 and 31,378.50 is: 47,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,560.10 : 131,300.19 = 31,378.50 : x
  2. Step 2: Convert to fraction form
    87,560.10/131,300.19 = 31,378.50/x
  3. Step 3: Cross multiply
    87,560.10x = 131,300.19 × 31,378.50
  4. Step 4: Simplify right side
    87,560.10x = 4,120,003,011.92
  5. Step 5: Solve for x
    x = 4,120,003,011.92/87,560.10
  6. Step 6: Final answer
    x = 47,053.43

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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.