Home / 81,534.91-112,470.38-51,272.23

Finding the Fourth Proportional to 81,534.91, 112,470.38 and 51,272.23

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Solution

The fourth proportional to 81,534.91, 112,470.38 and 51,272.23 is: 70,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,534.91 : 112,470.38 = 51,272.23 : x
  2. Step 2: Convert to fraction form
    81,534.91/112,470.38 = 51,272.23/x
  3. Step 3: Cross multiply
    81,534.91x = 112,470.38 × 51,272.23
  4. Step 4: Simplify right side
    81,534.91x = 5,766,606,757.38
  5. Step 5: Solve for x
    x = 5,766,606,757.38/81,534.91
  6. Step 6: Final answer
    x = 70,725.62

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1.5x scale

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.