Home / 40,722.60-61,055.10-18,546.60

Finding the Fourth Proportional to 40,722.60, 61,055.10 and 18,546.60

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Solution

The fourth proportional to 40,722.60, 61,055.10 and 18,546.60 is: 27,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,722.60 : 61,055.10 = 18,546.60 : x
  2. Step 2: Convert to fraction form
    40,722.60/61,055.10 = 18,546.60/x
  3. Step 3: Cross multiply
    40,722.60x = 61,055.10 × 18,546.60
  4. Step 4: Simplify right side
    40,722.60x = 1,132,364,517.66
  5. Step 5: Solve for x
    x = 1,132,364,517.66/40,722.60
  6. Step 6: Final answer
    x = 27,806.78

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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.