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Finding the Fourth Proportional to 66,465.38, 91,719.68 and 36,657.38

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Solution

The fourth proportional to 66,465.38, 91,719.68 and 36,657.38 is: 50,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465.38 : 91,719.68 = 36,657.38 : x
  2. Step 2: Convert to fraction form
    66,465.38/91,719.68 = 36,657.38/x
  3. Step 3: Cross multiply
    66,465.38x = 91,719.68 × 36,657.38
  4. Step 4: Simplify right side
    66,465.38x = 3,362,203,163.24
  5. Step 5: Solve for x
    x = 3,362,203,163.24/66,465.38
  6. Step 6: Final answer
    x = 50,585.78

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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.