Home / 54,471.09-74,999.22-49,488.69

Finding the Fourth Proportional to 54,471.09, 74,999.22 and 49,488.69

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Solution

The fourth proportional to 54,471.09, 74,999.22 and 49,488.69 is: 68,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,471.09 : 74,999.22 = 49,488.69 : x
  2. Step 2: Convert to fraction form
    54,471.09/74,999.22 = 49,488.69/x
  3. Step 3: Cross multiply
    54,471.09x = 74,999.22 × 49,488.69
  4. Step 4: Simplify right side
    54,471.09x = 3,711,613,148.82
  5. Step 5: Solve for x
    x = 3,711,613,148.82/54,471.09
  6. Step 6: Final answer
    x = 68,139.14

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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.