Home / 75,181.10-103,760.97-43,343.78

Finding the Fourth Proportional to 75,181.10, 103,760.97 and 43,343.78

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Solution

The fourth proportional to 75,181.10, 103,760.97 and 43,343.78 is: 59,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,181.10 : 103,760.97 = 43,343.78 : x
  2. Step 2: Convert to fraction form
    75,181.10/103,760.97 = 43,343.78/x
  3. Step 3: Cross multiply
    75,181.10x = 103,760.97 × 43,343.78
  4. Step 4: Simplify right side
    75,181.10x = 4,497,392,656.27
  5. Step 5: Solve for x
    x = 4,497,392,656.27/75,181.10
  6. Step 6: Final answer
    x = 59,820.79

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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.