Home / 79,478.12-119,143.02-26,850.80

Finding the Fourth Proportional to 79,478.12, 119,143.02 and 26,850.80

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Solution

The fourth proportional to 79,478.12, 119,143.02 and 26,850.80 is: 40,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,478.12 : 119,143.02 = 26,850.80 : x
  2. Step 2: Convert to fraction form
    79,478.12/119,143.02 = 26,850.80/x
  3. Step 3: Cross multiply
    79,478.12x = 119,143.02 × 26,850.80
  4. Step 4: Simplify right side
    79,478.12x = 3,199,085,401.42
  5. Step 5: Solve for x
    x = 3,199,085,401.42/79,478.12
  6. Step 6: Final answer
    x = 40,251.15

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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.