Home / 45,398.82-68,012.36-25,691.52

Finding the Fourth Proportional to 45,398.82, 68,012.36 and 25,691.52

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Solution

The fourth proportional to 45,398.82, 68,012.36 and 25,691.52 is: 38,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,398.82 : 68,012.36 = 25,691.52 : x
  2. Step 2: Convert to fraction form
    45,398.82/68,012.36 = 25,691.52/x
  3. Step 3: Cross multiply
    45,398.82x = 68,012.36 × 25,691.52
  4. Step 4: Simplify right side
    45,398.82x = 1,747,340,907.19
  5. Step 5: Solve for x
    x = 1,747,340,907.19/45,398.82
  6. Step 6: Final answer
    x = 38,488.69

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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.