Home / 80,309.22-120,574.17-40,892.82

Finding the Fourth Proportional to 80,309.22, 120,574.17 and 40,892.82

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Solution

The fourth proportional to 80,309.22, 120,574.17 and 40,892.82 is: 61,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,309.22 : 120,574.17 = 40,892.82 : x
  2. Step 2: Convert to fraction form
    80,309.22/120,574.17 = 40,892.82/x
  3. Step 3: Cross multiply
    80,309.22x = 120,574.17 × 40,892.82
  4. Step 4: Simplify right side
    80,309.22x = 4,930,617,830.46
  5. Step 5: Solve for x
    x = 4,930,617,830.46/80,309.22
  6. Step 6: Final answer
    x = 61,395.41

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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.