Home / 83,451.90-125,176.44-20,272.54

Finding the Fourth Proportional to 83,451.90, 125,176.44 and 20,272.54

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Solution

The fourth proportional to 83,451.90, 125,176.44 and 20,272.54 is: 30,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,451.90 : 125,176.44 = 20,272.54 : x
  2. Step 2: Convert to fraction form
    83,451.90/125,176.44 = 20,272.54/x
  3. Step 3: Cross multiply
    83,451.90x = 125,176.44 × 20,272.54
  4. Step 4: Simplify right side
    83,451.90x = 2,537,644,386.96
  5. Step 5: Solve for x
    x = 2,537,644,386.96/83,451.90
  6. Step 6: Final answer
    x = 30,408.47

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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.