Home / 81,011.16-121,540.08-24,859.52

Finding the Fourth Proportional to 81,011.16, 121,540.08 and 24,859.52

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Solution

The fourth proportional to 81,011.16, 121,540.08 and 24,859.52 is: 37,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,011.16 : 121,540.08 = 24,859.52 : x
  2. Step 2: Convert to fraction form
    81,011.16/121,540.08 = 24,859.52/x
  3. Step 3: Cross multiply
    81,011.16x = 121,540.08 × 24,859.52
  4. Step 4: Simplify right side
    81,011.16x = 3,021,428,049.56
  5. Step 5: Solve for x
    x = 3,021,428,049.56/81,011.16
  6. Step 6: Final answer
    x = 37,296.44

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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.