Home / 66,527.68-99,791.52-31,419.04

Finding the Fourth Proportional to 66,527.68, 99,791.52 and 31,419.04

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Solution

The fourth proportional to 66,527.68, 99,791.52 and 31,419.04 is: 47,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,527.68 : 99,791.52 = 31,419.04 : x
  2. Step 2: Convert to fraction form
    66,527.68/99,791.52 = 31,419.04/x
  3. Step 3: Cross multiply
    66,527.68x = 99,791.52 × 31,419.04
  4. Step 4: Simplify right side
    66,527.68x = 3,135,353,758.54
  5. Step 5: Solve for x
    x = 3,135,353,758.54/66,527.68
  6. Step 6: Final answer
    x = 47,128.56

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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.