Home / 66,278.20-91,464.32-36,063.75

Finding the Fourth Proportional to 66,278.20, 91,464.32 and 36,063.75

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Solution

The fourth proportional to 66,278.20, 91,464.32 and 36,063.75 is: 49,768.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,278.20 : 91,464.32 = 36,063.75 : x
  2. Step 2: Convert to fraction form
    66,278.20/91,464.32 = 36,063.75/x
  3. Step 3: Cross multiply
    66,278.20x = 91,464.32 × 36,063.75
  4. Step 4: Simplify right side
    66,278.20x = 3,298,546,370.40
  5. Step 5: Solve for x
    x = 3,298,546,370.40/66,278.20
  6. Step 6: Final answer
    x = 49,768.19

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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.