Home / 54,691.28-75,478.68-30,822.56

Finding the Fourth Proportional to 54,691.28, 75,478.68 and 30,822.56

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Solution

The fourth proportional to 54,691.28, 75,478.68 and 30,822.56 is: 42,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,691.28 : 75,478.68 = 30,822.56 : x
  2. Step 2: Convert to fraction form
    54,691.28/75,478.68 = 30,822.56/x
  3. Step 3: Cross multiply
    54,691.28x = 75,478.68 × 30,822.56
  4. Step 4: Simplify right side
    54,691.28x = 2,326,446,143.02
  5. Step 5: Solve for x
    x = 2,326,446,143.02/54,691.28
  6. Step 6: Final answer
    x = 42,537.79

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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.