Home / 75,157.44-112,701.24-28,380.48

Finding the Fourth Proportional to 75,157.44, 112,701.24 and 28,380.48

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Solution

The fourth proportional to 75,157.44, 112,701.24 and 28,380.48 is: 42,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.44 : 112,701.24 = 28,380.48 : x
  2. Step 2: Convert to fraction form
    75,157.44/112,701.24 = 28,380.48/x
  3. Step 3: Cross multiply
    75,157.44x = 112,701.24 × 28,380.48
  4. Step 4: Simplify right side
    75,157.44x = 3,198,515,287.80
  5. Step 5: Solve for x
    x = 3,198,515,287.80/75,157.44
  6. Step 6: Final answer
    x = 42,557.53

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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.