Home / 87,718.86-121,044.68-51,902.64

Finding the Fourth Proportional to 87,718.86, 121,044.68 and 51,902.64

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Solution

The fourth proportional to 87,718.86, 121,044.68 and 51,902.64 is: 71,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.86 : 121,044.68 = 51,902.64 : x
  2. Step 2: Convert to fraction form
    87,718.86/121,044.68 = 51,902.64/x
  3. Step 3: Cross multiply
    87,718.86x = 121,044.68 × 51,902.64
  4. Step 4: Simplify right side
    87,718.86x = 6,282,538,190.44
  5. Step 5: Solve for x
    x = 6,282,538,190.44/87,718.86
  6. Step 6: Final answer
    x = 71,621.29

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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.