Home / 81,273.01-112,179.30-47,288.06

Finding the Fourth Proportional to 81,273.01, 112,179.30 and 47,288.06

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Solution

The fourth proportional to 81,273.01, 112,179.30 and 47,288.06 is: 65,270.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,273.01 : 112,179.30 = 47,288.06 : x
  2. Step 2: Convert to fraction form
    81,273.01/112,179.30 = 47,288.06/x
  3. Step 3: Cross multiply
    81,273.01x = 112,179.30 × 47,288.06
  4. Step 4: Simplify right side
    81,273.01x = 5,304,741,624.86
  5. Step 5: Solve for x
    x = 5,304,741,624.86/81,273.01
  6. Step 6: Final answer
    x = 65,270.64

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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.