Home / 65,442.32-98,178.87-21,067.42

Finding the Fourth Proportional to 65,442.32, 98,178.87 and 21,067.42

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Solution

The fourth proportional to 65,442.32, 98,178.87 and 21,067.42 is: 31,606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,442.32 : 98,178.87 = 21,067.42 : x
  2. Step 2: Convert to fraction form
    65,442.32/98,178.87 = 21,067.42/x
  3. Step 3: Cross multiply
    65,442.32x = 98,178.87 × 21,067.42
  4. Step 4: Simplify right side
    65,442.32x = 2,068,375,489.42
  5. Step 5: Solve for x
    x = 2,068,375,489.42/65,442.32
  6. Step 6: Final answer
    x = 31,606.08

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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.