Home / 40,982.40-61,473.60-28,540.80

Finding the Fourth Proportional to 40,982.40, 61,473.60 and 28,540.80

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Solution

The fourth proportional to 40,982.40, 61,473.60 and 28,540.80 is: 42,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,982.40 : 61,473.60 = 28,540.80 : x
  2. Step 2: Convert to fraction form
    40,982.40/61,473.60 = 28,540.80/x
  3. Step 3: Cross multiply
    40,982.40x = 61,473.60 × 28,540.80
  4. Step 4: Simplify right side
    40,982.40x = 1,754,505,722.88
  5. Step 5: Solve for x
    x = 1,754,505,722.88/40,982.40
  6. Step 6: Final answer
    x = 42,811.20

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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.