Home / 87,531.94-120,672.28-73,976.19

Finding the Fourth Proportional to 87,531.94, 120,672.28 and 73,976.19

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Solution

The fourth proportional to 87,531.94, 120,672.28 and 73,976.19 is: 101,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,531.94 : 120,672.28 = 73,976.19 : x
  2. Step 2: Convert to fraction form
    87,531.94/120,672.28 = 73,976.19/x
  3. Step 3: Cross multiply
    87,531.94x = 120,672.28 × 73,976.19
  4. Step 4: Simplify right side
    87,531.94x = 8,926,875,152.96
  5. Step 5: Solve for x
    x = 8,926,875,152.96/87,531.94
  6. Step 6: Final answer
    x = 101,984.20

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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.