Home / 75,116.78-103,661.40-41,125.58

Finding the Fourth Proportional to 75,116.78, 103,661.40 and 41,125.58

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Solution

The fourth proportional to 75,116.78, 103,661.40 and 41,125.58 is: 56,753.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,116.78 : 103,661.40 = 41,125.58 : x
  2. Step 2: Convert to fraction form
    75,116.78/103,661.40 = 41,125.58/x
  3. Step 3: Cross multiply
    75,116.78x = 103,661.40 × 41,125.58
  4. Step 4: Simplify right side
    75,116.78x = 4,263,135,198.61
  5. Step 5: Solve for x
    x = 4,263,135,198.61/75,116.78
  6. Step 6: Final answer
    x = 56,753.43

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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.