Home / 66,613.36-91,923.68-36,399.70

Finding the Fourth Proportional to 66,613.36, 91,923.68 and 36,399.70

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Solution

The fourth proportional to 66,613.36, 91,923.68 and 36,399.70 is: 50,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,613.36 : 91,923.68 = 36,399.70 : x
  2. Step 2: Convert to fraction form
    66,613.36/91,923.68 = 36,399.70/x
  3. Step 3: Cross multiply
    66,613.36x = 91,923.68 × 36,399.70
  4. Step 4: Simplify right side
    66,613.36x = 3,345,994,374.90
  5. Step 5: Solve for x
    x = 3,345,994,374.90/66,613.36
  6. Step 6: Final answer
    x = 50,230.08

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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.