Home / 75,917.20-113,945.48-38,503.32

Finding the Fourth Proportional to 75,917.20, 113,945.48 and 38,503.32

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Solution

The fourth proportional to 75,917.20, 113,945.48 and 38,503.32 is: 57,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,917.20 : 113,945.48 = 38,503.32 : x
  2. Step 2: Convert to fraction form
    75,917.20/113,945.48 = 38,503.32/x
  3. Step 3: Cross multiply
    75,917.20x = 113,945.48 × 38,503.32
  4. Step 4: Simplify right side
    75,917.20x = 4,387,279,278.99
  5. Step 5: Solve for x
    x = 4,387,279,278.99/75,917.20
  6. Step 6: Final answer
    x = 57,790.32

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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.