Home / 87,330.57-120,445.68-58,641.58

Finding the Fourth Proportional to 87,330.57, 120,445.68 and 58,641.58

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Solution

The fourth proportional to 87,330.57, 120,445.68 and 58,641.58 is: 80,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.57 : 120,445.68 = 58,641.58 : x
  2. Step 2: Convert to fraction form
    87,330.57/120,445.68 = 58,641.58/x
  3. Step 3: Cross multiply
    87,330.57x = 120,445.68 × 58,641.58
  4. Step 4: Simplify right side
    87,330.57x = 7,063,124,979.37
  5. Step 5: Solve for x
    x = 7,063,124,979.37/87,330.57
  6. Step 6: Final answer
    x = 80,878.04

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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.