Home / 81,008.64-121,525.92-34,261.92

Finding the Fourth Proportional to 81,008.64, 121,525.92 and 34,261.92

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Solution

The fourth proportional to 81,008.64, 121,525.92 and 34,261.92 is: 51,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,008.64 : 121,525.92 = 34,261.92 : x
  2. Step 2: Convert to fraction form
    81,008.64/121,525.92 = 34,261.92/x
  3. Step 3: Cross multiply
    81,008.64x = 121,525.92 × 34,261.92
  4. Step 4: Simplify right side
    81,008.64x = 4,163,711,348.97
  5. Step 5: Solve for x
    x = 4,163,711,348.97/81,008.64
  6. Step 6: Final answer
    x = 51,398.36

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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.