Home / 51,724.06-71,387.31-30,505.66

Finding the Fourth Proportional to 51,724.06, 71,387.31 and 30,505.66

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Solution

The fourth proportional to 51,724.06, 71,387.31 and 30,505.66 is: 42,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,724.06 : 71,387.31 = 30,505.66 : x
  2. Step 2: Convert to fraction form
    51,724.06/71,387.31 = 30,505.66/x
  3. Step 3: Cross multiply
    51,724.06x = 71,387.31 × 30,505.66
  4. Step 4: Simplify right side
    51,724.06x = 2,177,717,007.17
  5. Step 5: Solve for x
    x = 2,177,717,007.17/51,724.06
  6. Step 6: Final answer
    x = 42,102.59

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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.