Home / 87,773.52-121,127.40-49,541.12

Finding the Fourth Proportional to 87,773.52, 121,127.40 and 49,541.12

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Solution

The fourth proportional to 87,773.52, 121,127.40 and 49,541.12 is: 68,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.52 : 121,127.40 = 49,541.12 : x
  2. Step 2: Convert to fraction form
    87,773.52/121,127.40 = 49,541.12/x
  3. Step 3: Cross multiply
    87,773.52x = 121,127.40 × 49,541.12
  4. Step 4: Simplify right side
    87,773.52x = 6,000,786,907.28
  5. Step 5: Solve for x
    x = 6,000,786,907.28/87,773.52
  6. Step 6: Final answer
    x = 68,366.71

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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.