Home / 81,272.46-112,178.54-47,287.52

Finding the Fourth Proportional to 81,272.46, 112,178.54 and 47,287.52

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Solution

The fourth proportional to 81,272.46, 112,178.54 and 47,287.52 is: 65,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,272.46 : 112,178.54 = 47,287.52 : x
  2. Step 2: Convert to fraction form
    81,272.46/112,178.54 = 47,287.52/x
  3. Step 3: Cross multiply
    81,272.46x = 112,178.54 × 47,287.52
  4. Step 4: Simplify right side
    81,272.46x = 5,304,644,156.49
  5. Step 5: Solve for x
    x = 5,304,644,156.49/81,272.46
  6. Step 6: Final answer
    x = 65,269.89

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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.