Home / 87,715.44-121,047.12-49,474.86

Finding the Fourth Proportional to 87,715.44, 121,047.12 and 49,474.86

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Solution

The fourth proportional to 87,715.44, 121,047.12 and 49,474.86 is: 68,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,715.44 : 121,047.12 = 49,474.86 : x
  2. Step 2: Convert to fraction form
    87,715.44/121,047.12 = 49,474.86/x
  3. Step 3: Cross multiply
    87,715.44x = 121,047.12 × 49,474.86
  4. Step 4: Simplify right side
    87,715.44x = 5,988,789,315.40
  5. Step 5: Solve for x
    x = 5,988,789,315.40/87,715.44
  6. Step 6: Final answer
    x = 68,275.20

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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.