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Finding the Fourth Proportional to 66,613.73, 91,924.20 and 36,400.10

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Solution

The fourth proportional to 66,613.73, 91,924.20 and 36,400.10 is: 50,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,613.73 : 91,924.20 = 36,400.10 : x
  2. Step 2: Convert to fraction form
    66,613.73/91,924.20 = 36,400.10/x
  3. Step 3: Cross multiply
    66,613.73x = 91,924.20 × 36,400.10
  4. Step 4: Simplify right side
    66,613.73x = 3,346,049,612.80
  5. Step 5: Solve for x
    x = 3,346,049,612.80/66,613.73
  6. Step 6: Final answer
    x = 50,230.63

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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.