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Finding the Fourth Proportional to 66,279.65, 91,467.01 and 36,065.13

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Solution

The fourth proportional to 66,279.65, 91,467.01 and 36,065.13 is: 49,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,279.65 : 91,467.01 = 36,065.13 : x
  2. Step 2: Convert to fraction form
    66,279.65/91,467.01 = 36,065.13/x
  3. Step 3: Cross multiply
    66,279.65x = 91,467.01 × 36,065.13
  4. Step 4: Simplify right side
    66,279.65x = 3,298,769,149.03
  5. Step 5: Solve for x
    x = 3,298,769,149.03/66,279.65
  6. Step 6: Final answer
    x = 49,770.47

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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.