Home / 40,882.80-61,324.20-30,385.20

Finding the Fourth Proportional to 40,882.80, 61,324.20 and 30,385.20

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Solution

The fourth proportional to 40,882.80, 61,324.20 and 30,385.20 is: 45,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,882.80 : 61,324.20 = 30,385.20 : x
  2. Step 2: Convert to fraction form
    40,882.80/61,324.20 = 30,385.20/x
  3. Step 3: Cross multiply
    40,882.80x = 61,324.20 × 30,385.20
  4. Step 4: Simplify right side
    40,882.80x = 1,863,348,081.84
  5. Step 5: Solve for x
    x = 1,863,348,081.84/40,882.80
  6. Step 6: Final answer
    x = 45,577.80

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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.