Home / 75,135.10-103,683.22-41,142.97

Finding the Fourth Proportional to 75,135.10, 103,683.22 and 41,142.97

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Solution

The fourth proportional to 75,135.10, 103,683.22 and 41,142.97 is: 56,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.10 : 103,683.22 = 41,142.97 : x
  2. Step 2: Convert to fraction form
    75,135.10/103,683.22 = 41,142.97/x
  3. Step 3: Cross multiply
    75,135.10x = 103,683.22 × 41,142.97
  4. Step 4: Simplify right side
    75,135.10x = 4,265,835,609.96
  5. Step 5: Solve for x
    x = 4,265,835,609.96/75,135.10
  6. Step 6: Final answer
    x = 56,775.54

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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.