Home / 54,311.30-74,952.68-30,439.51

Finding the Fourth Proportional to 54,311.30, 74,952.68 and 30,439.51

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Solution

The fourth proportional to 54,311.30, 74,952.68 and 30,439.51 is: 42,008.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,311.30 : 74,952.68 = 30,439.51 : x
  2. Step 2: Convert to fraction form
    54,311.30/74,952.68 = 30,439.51/x
  3. Step 3: Cross multiply
    54,311.30x = 74,952.68 × 30,439.51
  4. Step 4: Simplify right side
    54,311.30x = 2,281,522,934.42
  5. Step 5: Solve for x
    x = 2,281,522,934.42/54,311.30
  6. Step 6: Final answer
    x = 42,008.26

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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.