Home / 75,128.10-103,673.56-41,135.97

Finding the Fourth Proportional to 75,128.10, 103,673.56 and 41,135.97

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Solution

The fourth proportional to 75,128.10, 103,673.56 and 41,135.97 is: 56,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.10 : 103,673.56 = 41,135.97 : x
  2. Step 2: Convert to fraction form
    75,128.10/103,673.56 = 41,135.97/x
  3. Step 3: Cross multiply
    75,128.10x = 103,673.56 × 41,135.97
  4. Step 4: Simplify right side
    75,128.10x = 4,264,712,453.95
  5. Step 5: Solve for x
    x = 4,264,712,453.95/75,128.10
  6. Step 6: Final answer
    x = 56,765.88

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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.