Home / 87,695.52-121,020.32-49,972.48

Finding the Fourth Proportional to 87,695.52, 121,020.32 and 49,972.48

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Solution

The fourth proportional to 87,695.52, 121,020.32 and 49,972.48 is: 68,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,695.52 : 121,020.32 = 49,972.48 : x
  2. Step 2: Convert to fraction form
    87,695.52/121,020.32 = 49,972.48/x
  3. Step 3: Cross multiply
    87,695.52x = 121,020.32 × 49,972.48
  4. Step 4: Simplify right side
    87,695.52x = 6,047,685,520.79
  5. Step 5: Solve for x
    x = 6,047,685,520.79/87,695.52
  6. Step 6: Final answer
    x = 68,962.31

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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.