Home / 66,279.20-91,465.70-36,064.75

Finding the Fourth Proportional to 66,279.20, 91,465.70 and 36,064.75

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Solution

The fourth proportional to 66,279.20, 91,465.70 and 36,064.75 is: 49,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,279.20 : 91,465.70 = 36,064.75 : x
  2. Step 2: Convert to fraction form
    66,279.20/91,465.70 = 36,064.75/x
  3. Step 3: Cross multiply
    66,279.20x = 91,465.70 × 36,064.75
  4. Step 4: Simplify right side
    66,279.20x = 3,298,687,604.08
  5. Step 5: Solve for x
    x = 3,298,687,604.08/66,279.20
  6. Step 6: Final answer
    x = 49,769.57

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1.5x scale

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.