Home / 87,932.71-121,349.37-53,959.96

Finding the Fourth Proportional to 87,932.71, 121,349.37 and 53,959.96

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Solution

The fourth proportional to 87,932.71, 121,349.37 and 53,959.96 is: 74,466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.71 : 121,349.37 = 53,959.96 : x
  2. Step 2: Convert to fraction form
    87,932.71/121,349.37 = 53,959.96/x
  3. Step 3: Cross multiply
    87,932.71x = 121,349.37 × 53,959.96
  4. Step 4: Simplify right side
    87,932.71x = 6,548,006,822.67
  5. Step 5: Solve for x
    x = 6,548,006,822.67/87,932.71
  6. Step 6: Final answer
    x = 74,466.11

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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.