Home / 75,380.48-113,070.24-19,976

Finding the Fourth Proportional to 75,380.48, 113,070.24 and 19,976

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Solution

The fourth proportional to 75,380.48, 113,070.24 and 19,976 is: 29,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,380.48 : 113,070.24 = 19,976 : x
  2. Step 2: Convert to fraction form
    75,380.48/113,070.24 = 19,976/x
  3. Step 3: Cross multiply
    75,380.48x = 113,070.24 × 19,976
  4. Step 4: Simplify right side
    75,380.48x = 2,258,691,114.24
  5. Step 5: Solve for x
    x = 2,258,691,114.24/75,380.48
  6. Step 6: Final answer
    x = 29,963.87

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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.