Home / 75,928.28-104,781.22-42,395.48

Finding the Fourth Proportional to 75,928.28, 104,781.22 and 42,395.48

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Solution

The fourth proportional to 75,928.28, 104,781.22 and 42,395.48 is: 58,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,928.28 : 104,781.22 = 42,395.48 : x
  2. Step 2: Convert to fraction form
    75,928.28/104,781.22 = 42,395.48/x
  3. Step 3: Cross multiply
    75,928.28x = 104,781.22 × 42,395.48
  4. Step 4: Simplify right side
    75,928.28x = 4,442,250,116.89
  5. Step 5: Solve for x
    x = 4,442,250,116.89/75,928.28
  6. Step 6: Final answer
    x = 58,505.87

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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.