Home / 87,904.83-121,278.83-49,658.79

Finding the Fourth Proportional to 87,904.83, 121,278.83 and 49,658.79

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Solution

The fourth proportional to 87,904.83, 121,278.83 and 49,658.79 is: 68,512.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,904.83 : 121,278.83 = 49,658.79 : x
  2. Step 2: Convert to fraction form
    87,904.83/121,278.83 = 49,658.79/x
  3. Step 3: Cross multiply
    87,904.83x = 121,278.83 × 49,658.79
  4. Step 4: Simplify right side
    87,904.83x = 6,022,559,702.12
  5. Step 5: Solve for x
    x = 6,022,559,702.12/87,904.83
  6. Step 6: Final answer
    x = 68,512.27

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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.