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Finding the Fourth Proportional to 87,560.80, 131,438.40 and 67,926.40

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Solution

The fourth proportional to 87,560.80, 131,438.40 and 67,926.40 is: 101,965.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,560.80 : 131,438.40 = 67,926.40 : x
  2. Step 2: Convert to fraction form
    87,560.80/131,438.40 = 67,926.40/x
  3. Step 3: Cross multiply
    87,560.80x = 131,438.40 × 67,926.40
  4. Step 4: Simplify right side
    87,560.80x = 8,928,137,333.76
  5. Step 5: Solve for x
    x = 8,928,137,333.76/87,560.80
  6. Step 6: Final answer
    x = 101,965.00

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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.