Home / 75,147.60-103,714.74-43,310.28

Finding the Fourth Proportional to 75,147.60, 103,714.74 and 43,310.28

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Solution

The fourth proportional to 75,147.60, 103,714.74 and 43,310.28 is: 59,774.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147.60 : 103,714.74 = 43,310.28 : x
  2. Step 2: Convert to fraction form
    75,147.60/103,714.74 = 43,310.28/x
  3. Step 3: Cross multiply
    75,147.60x = 103,714.74 × 43,310.28
  4. Step 4: Simplify right side
    75,147.60x = 4,491,914,429.53
  5. Step 5: Solve for x
    x = 4,491,914,429.53/75,147.60
  6. Step 6: Final answer
    x = 59,774.56

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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.