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Finding the Fourth Proportional to 66,610.24, 91,919.28 and 36,395.08

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Solution

The fourth proportional to 66,610.24, 91,919.28 and 36,395.08 is: 50,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,610.24 : 91,919.28 = 36,395.08 : x
  2. Step 2: Convert to fraction form
    66,610.24/91,919.28 = 36,395.08/x
  3. Step 3: Cross multiply
    66,610.24x = 91,919.28 × 36,395.08
  4. Step 4: Simplify right side
    66,610.24x = 3,345,409,549.14
  5. Step 5: Solve for x
    x = 3,345,409,549.14/66,610.24
  6. Step 6: Final answer
    x = 50,223.65

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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.