Home / 74,961.72-112,408.92-28,181.52

Finding the Fourth Proportional to 74,961.72, 112,408.92 and 28,181.52

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Solution

The fourth proportional to 74,961.72, 112,408.92 and 28,181.52 is: 42,259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,961.72 : 112,408.92 = 28,181.52 : x
  2. Step 2: Convert to fraction form
    74,961.72/112,408.92 = 28,181.52/x
  3. Step 3: Cross multiply
    74,961.72x = 112,408.92 × 28,181.52
  4. Step 4: Simplify right side
    74,961.72x = 3,167,854,227.16
  5. Step 5: Solve for x
    x = 3,167,854,227.16/74,961.72
  6. Step 6: Final answer
    x = 42,259.63

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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.