Home / 75,856.12-113,751.07-40,308.86

Finding the Fourth Proportional to 75,856.12, 113,751.07 and 40,308.86

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Solution

The fourth proportional to 75,856.12, 113,751.07 and 40,308.86 is: 60,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,856.12 : 113,751.07 = 40,308.86 : x
  2. Step 2: Convert to fraction form
    75,856.12/113,751.07 = 40,308.86/x
  3. Step 3: Cross multiply
    75,856.12x = 113,751.07 × 40,308.86
  4. Step 4: Simplify right side
    75,856.12x = 4,585,176,139.09
  5. Step 5: Solve for x
    x = 4,585,176,139.09/75,856.12
  6. Step 6: Final answer
    x = 60,445.70

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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.