Home / 81,097.29-121,645.53-21,932.73

Finding the Fourth Proportional to 81,097.29, 121,645.53 and 21,932.73

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Solution

The fourth proportional to 81,097.29, 121,645.53 and 21,932.73 is: 32,898.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,097.29 : 121,645.53 = 21,932.73 : x
  2. Step 2: Convert to fraction form
    81,097.29/121,645.53 = 21,932.73/x
  3. Step 3: Cross multiply
    81,097.29x = 121,645.53 × 21,932.73
  4. Step 4: Simplify right side
    81,097.29x = 2,668,018,565.20
  5. Step 5: Solve for x
    x = 2,668,018,565.20/81,097.29
  6. Step 6: Final answer
    x = 32,898.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.