Home / 87,561.40-131,439.30-48,195.40

Finding the Fourth Proportional to 87,561.40, 131,439.30 and 48,195.40

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Solution

The fourth proportional to 87,561.40, 131,439.30 and 48,195.40 is: 72,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,561.40 : 131,439.30 = 48,195.40 : x
  2. Step 2: Convert to fraction form
    87,561.40/131,439.30 = 48,195.40/x
  3. Step 3: Cross multiply
    87,561.40x = 131,439.30 × 48,195.40
  4. Step 4: Simplify right side
    87,561.40x = 6,334,769,639.22
  5. Step 5: Solve for x
    x = 6,334,769,639.22/87,561.40
  6. Step 6: Final answer
    x = 72,346.60

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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.