Home / 54,959.72-75,842.12-31,086.79

Finding the Fourth Proportional to 54,959.72, 75,842.12 and 31,086.79

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Solution

The fourth proportional to 54,959.72, 75,842.12 and 31,086.79 is: 42,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,959.72 : 75,842.12 = 31,086.79 : x
  2. Step 2: Convert to fraction form
    54,959.72/75,842.12 = 31,086.79/x
  3. Step 3: Cross multiply
    54,959.72x = 75,842.12 × 31,086.79
  4. Step 4: Simplify right side
    54,959.72x = 2,357,687,945.71
  5. Step 5: Solve for x
    x = 2,357,687,945.71/54,959.72
  6. Step 6: Final answer
    x = 42,898.47

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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.