Home / 87,335.70-130,910.11-45,173.33

Finding the Fourth Proportional to 87,335.70, 130,910.11 and 45,173.33

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Solution

The fourth proportional to 87,335.70, 130,910.11 and 45,173.33 is: 67,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,335.70 : 130,910.11 = 45,173.33 : x
  2. Step 2: Convert to fraction form
    87,335.70/130,910.11 = 45,173.33/x
  3. Step 3: Cross multiply
    87,335.70x = 130,910.11 × 45,173.33
  4. Step 4: Simplify right side
    87,335.70x = 5,913,645,322.80
  5. Step 5: Solve for x
    x = 5,913,645,322.80/87,335.70
  6. Step 6: Final answer
    x = 67,711.66

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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.