Home / 75,134.90-103,682.96-41,142.78

Finding the Fourth Proportional to 75,134.90, 103,682.96 and 41,142.78

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Solution

The fourth proportional to 75,134.90, 103,682.96 and 41,142.78 is: 56,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.90 : 103,682.96 = 41,142.78 : x
  2. Step 2: Convert to fraction form
    75,134.90/103,682.96 = 41,142.78/x
  3. Step 3: Cross multiply
    75,134.90x = 103,682.96 × 41,142.78
  4. Step 4: Simplify right side
    75,134.90x = 4,265,805,213.03
  5. Step 5: Solve for x
    x = 4,265,805,213.03/75,134.90
  6. Step 6: Final answer
    x = 56,775.28

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1.5x scale

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.