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Finding the Fourth Proportional to 66,440.32, 91,687.04 and 36,632.32

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Solution

The fourth proportional to 66,440.32, 91,687.04 and 36,632.32 is: 50,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440.32 : 91,687.04 = 36,632.32 : x
  2. Step 2: Convert to fraction form
    66,440.32/91,687.04 = 36,632.32/x
  3. Step 3: Cross multiply
    66,440.32x = 91,687.04 × 36,632.32
  4. Step 4: Simplify right side
    66,440.32x = 3,358,708,989.13
  5. Step 5: Solve for x
    x = 3,358,708,989.13/66,440.32
  6. Step 6: Final answer
    x = 50,552.27

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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.