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Finding the Fourth Proportional to 66,082.26, 99,133.76 and 21,698.92

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Solution

The fourth proportional to 66,082.26, 99,133.76 and 21,698.92 is: 32,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,082.26 : 99,133.76 = 21,698.92 : x
  2. Step 2: Convert to fraction form
    66,082.26/99,133.76 = 21,698.92/x
  3. Step 3: Cross multiply
    66,082.26x = 99,133.76 × 21,698.92
  4. Step 4: Simplify right side
    66,082.26x = 2,151,095,527.54
  5. Step 5: Solve for x
    x = 2,151,095,527.54/66,082.26
  6. Step 6: Final answer
    x = 32,551.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.