Home / 87,445.68-131,160.84-45,323.76

Finding the Fourth Proportional to 87,445.68, 131,160.84 and 45,323.76

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Solution

The fourth proportional to 87,445.68, 131,160.84 and 45,323.76 is: 67,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.68 : 131,160.84 = 45,323.76 : x
  2. Step 2: Convert to fraction form
    87,445.68/131,160.84 = 45,323.76/x
  3. Step 3: Cross multiply
    87,445.68x = 131,160.84 × 45,323.76
  4. Step 4: Simplify right side
    87,445.68x = 5,944,702,433.56
  5. Step 5: Solve for x
    x = 5,944,702,433.56/87,445.68
  6. Step 6: Final answer
    x = 67,981.66

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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.