Home / 79,515.30-119,272.32-20,350.80

Finding the Fourth Proportional to 79,515.30, 119,272.32 and 20,350.80

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Solution

The fourth proportional to 79,515.30, 119,272.32 and 20,350.80 is: 30,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,515.30 : 119,272.32 = 20,350.80 : x
  2. Step 2: Convert to fraction form
    79,515.30/119,272.32 = 20,350.80/x
  3. Step 3: Cross multiply
    79,515.30x = 119,272.32 × 20,350.80
  4. Step 4: Simplify right side
    79,515.30x = 2,427,287,129.86
  5. Step 5: Solve for x
    x = 2,427,287,129.86/79,515.30
  6. Step 6: Final answer
    x = 30,526.04

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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.