Home / 40,286.64-60,419.40-18,087.60

Finding the Fourth Proportional to 40,286.64, 60,419.40 and 18,087.60

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Solution

The fourth proportional to 40,286.64, 60,419.40 and 18,087.60 is: 27,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286.64 : 60,419.40 = 18,087.60 : x
  2. Step 2: Convert to fraction form
    40,286.64/60,419.40 = 18,087.60/x
  3. Step 3: Cross multiply
    40,286.64x = 60,419.40 × 18,087.60
  4. Step 4: Simplify right side
    40,286.64x = 1,092,841,939.44
  5. Step 5: Solve for x
    x = 1,092,841,939.44/40,286.64
  6. Step 6: Final answer
    x = 27,126.66

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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.