Home / 40,884.80-61,327.20-30,387.20

Finding the Fourth Proportional to 40,884.80, 61,327.20 and 30,387.20

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Solution

The fourth proportional to 40,884.80, 61,327.20 and 30,387.20 is: 45,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,884.80 : 61,327.20 = 30,387.20 : x
  2. Step 2: Convert to fraction form
    40,884.80/61,327.20 = 30,387.20/x
  3. Step 3: Cross multiply
    40,884.80x = 61,327.20 × 30,387.20
  4. Step 4: Simplify right side
    40,884.80x = 1,863,561,891.84
  5. Step 5: Solve for x
    x = 1,863,561,891.84/40,884.80
  6. Step 6: Final answer
    x = 45,580.80

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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.