Home / 87,329.40-130,799.70-67,500.60

Finding the Fourth Proportional to 87,329.40, 130,799.70 and 67,500.60

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Solution

The fourth proportional to 87,329.40, 130,799.70 and 67,500.60 is: 101,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,329.40 : 130,799.70 = 67,500.60 : x
  2. Step 2: Convert to fraction form
    87,329.40/130,799.70 = 67,500.60/x
  3. Step 3: Cross multiply
    87,329.40x = 130,799.70 × 67,500.60
  4. Step 4: Simplify right side
    87,329.40x = 8,829,058,229.82
  5. Step 5: Solve for x
    x = 8,829,058,229.82/87,329.40
  6. Step 6: Final answer
    x = 101,100.64

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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.