Home / 87,516.40-131,188.20-43,106.80

Finding the Fourth Proportional to 87,516.40, 131,188.20 and 43,106.80

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Solution

The fourth proportional to 87,516.40, 131,188.20 and 43,106.80 is: 64,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,516.40 : 131,188.20 = 43,106.80 : x
  2. Step 2: Convert to fraction form
    87,516.40/131,188.20 = 43,106.80/x
  3. Step 3: Cross multiply
    87,516.40x = 131,188.20 × 43,106.80
  4. Step 4: Simplify right side
    87,516.40x = 5,655,103,499.76
  5. Step 5: Solve for x
    x = 5,655,103,499.76/87,516.40
  6. Step 6: Final answer
    x = 64,617.64

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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.