Home / 87,727.59-121,064.76-48,437.78

Finding the Fourth Proportional to 87,727.59, 121,064.76 and 48,437.78

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Solution

The fourth proportional to 87,727.59, 121,064.76 and 48,437.78 is: 66,844.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727.59 : 121,064.76 = 48,437.78 : x
  2. Step 2: Convert to fraction form
    87,727.59/121,064.76 = 48,437.78/x
  3. Step 3: Cross multiply
    87,727.59x = 121,064.76 × 48,437.78
  4. Step 4: Simplify right side
    87,727.59x = 5,864,107,605.31
  5. Step 5: Solve for x
    x = 5,864,107,605.31/87,727.59
  6. Step 6: Final answer
    x = 66,844.51

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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.