Home / 87,279.08-120,445.24-49,553.32

Finding the Fourth Proportional to 87,279.08, 120,445.24 and 49,553.32

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Solution

The fourth proportional to 87,279.08, 120,445.24 and 49,553.32 is: 68,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,279.08 : 120,445.24 = 49,553.32 : x
  2. Step 2: Convert to fraction form
    87,279.08/120,445.24 = 49,553.32/x
  3. Step 3: Cross multiply
    87,279.08x = 120,445.24 × 49,553.32
  4. Step 4: Simplify right side
    87,279.08x = 5,968,461,520.20
  5. Step 5: Solve for x
    x = 5,968,461,520.20/87,279.08
  6. Step 6: Final answer
    x = 68,383.64

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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.