Home / 79,440.75-119,161.02-20,276.43

Finding the Fourth Proportional to 79,440.75, 119,161.02 and 20,276.43

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Solution

The fourth proportional to 79,440.75, 119,161.02 and 20,276.43 is: 30,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.75 : 119,161.02 = 20,276.43 : x
  2. Step 2: Convert to fraction form
    79,440.75/119,161.02 = 20,276.43/x
  3. Step 3: Cross multiply
    79,440.75x = 119,161.02 × 20,276.43
  4. Step 4: Simplify right side
    79,440.75x = 2,416,159,595.89
  5. Step 5: Solve for x
    x = 2,416,159,595.89/79,440.75
  6. Step 6: Final answer
    x = 30,414.61

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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.