Home / 87,500.05-120,759.12-53,531.15

Finding the Fourth Proportional to 87,500.05, 120,759.12 and 53,531.15

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Solution

The fourth proportional to 87,500.05, 120,759.12 and 53,531.15 is: 73,878.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,500.05 : 120,759.12 = 53,531.15 : x
  2. Step 2: Convert to fraction form
    87,500.05/120,759.12 = 53,531.15/x
  3. Step 3: Cross multiply
    87,500.05x = 120,759.12 × 53,531.15
  4. Step 4: Simplify right side
    87,500.05x = 6,464,373,962.79
  5. Step 5: Solve for x
    x = 6,464,373,962.79/87,500.05
  6. Step 6: Final answer
    x = 73,878.52

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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.