Home / 75,856.10-113,784.15-38,531.30

Finding the Fourth Proportional to 75,856.10, 113,784.15 and 38,531.30

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Solution

The fourth proportional to 75,856.10, 113,784.15 and 38,531.30 is: 57,796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,856.10 : 113,784.15 = 38,531.30 : x
  2. Step 2: Convert to fraction form
    75,856.10/113,784.15 = 38,531.30/x
  3. Step 3: Cross multiply
    75,856.10x = 113,784.15 × 38,531.30
  4. Step 4: Simplify right side
    75,856.10x = 4,384,251,218.90
  5. Step 5: Solve for x
    x = 4,384,251,218.90/75,856.10
  6. Step 6: Final answer
    x = 57,796.95

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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.