Home / 40,151.75-55,435.40-25,818

Finding the Fourth Proportional to 40,151.75, 55,435.40 and 25,818

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Solution

The fourth proportional to 40,151.75, 55,435.40 and 25,818 is: 35,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,151.75 : 55,435.40 = 25,818 : x
  2. Step 2: Convert to fraction form
    40,151.75/55,435.40 = 25,818/x
  3. Step 3: Cross multiply
    40,151.75x = 55,435.40 × 25,818
  4. Step 4: Simplify right side
    40,151.75x = 1,431,231,157.20
  5. Step 5: Solve for x
    x = 1,431,231,157.20/40,151.75
  6. Step 6: Final answer
    x = 35,645.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.