Home / 87,089.38-120,251.28-66,914.26

Finding the Fourth Proportional to 87,089.38, 120,251.28 and 66,914.26

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Solution

The fourth proportional to 87,089.38, 120,251.28 and 66,914.26 is: 92,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.38 : 120,251.28 = 66,914.26 : x
  2. Step 2: Convert to fraction form
    87,089.38/120,251.28 = 66,914.26/x
  3. Step 3: Cross multiply
    87,089.38x = 120,251.28 × 66,914.26
  4. Step 4: Simplify right side
    87,089.38x = 8,046,525,415.25
  5. Step 5: Solve for x
    x = 8,046,525,415.25/87,089.38
  6. Step 6: Final answer
    x = 92,393.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.