Home / 87,285.47-120,452.85-49,557.29

Finding the Fourth Proportional to 87,285.47, 120,452.85 and 49,557.29

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Solution

The fourth proportional to 87,285.47, 120,452.85 and 49,557.29 is: 68,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,285.47 : 120,452.85 = 49,557.29 : x
  2. Step 2: Convert to fraction form
    87,285.47/120,452.85 = 49,557.29/x
  3. Step 3: Cross multiply
    87,285.47x = 120,452.85 × 49,557.29
  4. Step 4: Simplify right side
    87,285.47x = 5,969,316,216.51
  5. Step 5: Solve for x
    x = 5,969,316,216.51/87,285.47
  6. Step 6: Final answer
    x = 68,388.43

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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.