Home / 87,419.44-120,638.52-49,693.68

Finding the Fourth Proportional to 87,419.44, 120,638.52 and 49,693.68

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Solution

The fourth proportional to 87,419.44, 120,638.52 and 49,693.68 is: 68,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,419.44 : 120,638.52 = 49,693.68 : x
  2. Step 2: Convert to fraction form
    87,419.44/120,638.52 = 49,693.68/x
  3. Step 3: Cross multiply
    87,419.44x = 120,638.52 × 49,693.68
  4. Step 4: Simplify right side
    87,419.44x = 5,994,972,008.55
  5. Step 5: Solve for x
    x = 5,994,972,008.55/87,419.44
  6. Step 6: Final answer
    x = 68,577.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.