Home / 75,910.30-113,869.61-31,541.53

Finding the Fourth Proportional to 75,910.30, 113,869.61 and 31,541.53

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Solution

The fourth proportional to 75,910.30, 113,869.61 and 31,541.53 is: 47,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,910.30 : 113,869.61 = 31,541.53 : x
  2. Step 2: Convert to fraction form
    75,910.30/113,869.61 = 31,541.53/x
  3. Step 3: Cross multiply
    75,910.30x = 113,869.61 × 31,541.53
  4. Step 4: Simplify right side
    75,910.30x = 3,591,621,719.90
  5. Step 5: Solve for x
    x = 3,591,621,719.90/75,910.30
  6. Step 6: Final answer
    x = 47,314.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.