Home / 79,479.18-119,218.41-20,314.76

Finding the Fourth Proportional to 79,479.18, 119,218.41 and 20,314.76

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Solution

The fourth proportional to 79,479.18, 119,218.41 and 20,314.76 is: 30,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.18 : 119,218.41 = 20,314.76 : x
  2. Step 2: Convert to fraction form
    79,479.18/119,218.41 = 20,314.76/x
  3. Step 3: Cross multiply
    79,479.18x = 119,218.41 × 20,314.76
  4. Step 4: Simplify right side
    79,479.18x = 2,421,892,790.64
  5. Step 5: Solve for x
    x = 2,421,892,790.64/79,479.18
  6. Step 6: Final answer
    x = 30,472.04

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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.