Home / 54,151.68-74,718.72-31,493.28

Finding the Fourth Proportional to 54,151.68, 74,718.72 and 31,493.28

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Solution

The fourth proportional to 54,151.68, 74,718.72 and 31,493.28 is: 43,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,151.68 : 74,718.72 = 31,493.28 : x
  2. Step 2: Convert to fraction form
    54,151.68/74,718.72 = 31,493.28/x
  3. Step 3: Cross multiply
    54,151.68x = 74,718.72 × 31,493.28
  4. Step 4: Simplify right side
    54,151.68x = 2,353,137,570.20
  5. Step 5: Solve for x
    x = 2,353,137,570.20/54,151.68
  6. Step 6: Final answer
    x = 43,454.56

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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.