Home / 79,446.06-119,168.96-20,281.72

Finding the Fourth Proportional to 79,446.06, 119,168.96 and 20,281.72

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Solution

The fourth proportional to 79,446.06, 119,168.96 and 20,281.72 is: 30,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446.06 : 119,168.96 = 20,281.72 : x
  2. Step 2: Convert to fraction form
    79,446.06/119,168.96 = 20,281.72/x
  3. Step 3: Cross multiply
    79,446.06x = 119,168.96 × 20,281.72
  4. Step 4: Simplify right side
    79,446.06x = 2,416,951,479.41
  5. Step 5: Solve for x
    x = 2,416,951,479.41/79,446.06
  6. Step 6: Final answer
    x = 30,422.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.