Home / 87,438.79-131,158.07-34,885.18

Finding the Fourth Proportional to 87,438.79, 131,158.07 and 34,885.18

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Solution

The fourth proportional to 87,438.79, 131,158.07 and 34,885.18 is: 52,327.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,438.79 : 131,158.07 = 34,885.18 : x
  2. Step 2: Convert to fraction form
    87,438.79/131,158.07 = 34,885.18/x
  3. Step 3: Cross multiply
    87,438.79x = 131,158.07 × 34,885.18
  4. Step 4: Simplify right side
    87,438.79x = 4,575,473,147.92
  5. Step 5: Solve for x
    x = 4,575,473,147.92/87,438.79
  6. Step 6: Final answer
    x = 52,327.73

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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.