Home / 79,397.12-109,585.28-54,306.56

Finding the Fourth Proportional to 79,397.12, 109,585.28 and 54,306.56

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Solution

The fourth proportional to 79,397.12, 109,585.28 and 54,306.56 is: 74,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,397.12 : 109,585.28 = 54,306.56 : x
  2. Step 2: Convert to fraction form
    79,397.12/109,585.28 = 54,306.56/x
  3. Step 3: Cross multiply
    79,397.12x = 109,585.28 × 54,306.56
  4. Step 4: Simplify right side
    79,397.12x = 5,951,199,583.44
  5. Step 5: Solve for x
    x = 5,951,199,583.44/79,397.12
  6. Step 6: Final answer
    x = 74,954.85

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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.