Home / 81,476.43-112,227.15-57,561.58

Finding the Fourth Proportional to 81,476.43, 112,227.15 and 57,561.58

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Solution

The fourth proportional to 81,476.43, 112,227.15 and 57,561.58 is: 79,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,476.43 : 112,227.15 = 57,561.58 : x
  2. Step 2: Convert to fraction form
    81,476.43/112,227.15 = 57,561.58/x
  3. Step 3: Cross multiply
    81,476.43x = 112,227.15 × 57,561.58
  4. Step 4: Simplify right side
    81,476.43x = 6,459,972,072.90
  5. Step 5: Solve for x
    x = 6,459,972,072.90/81,476.43
  6. Step 6: Final answer
    x = 79,286.39

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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.