Home / 57,132.73-85,731.50-30,836.89

Finding the Fourth Proportional to 57,132.73, 85,731.50 and 30,836.89

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Solution

The fourth proportional to 57,132.73, 85,731.50 and 30,836.89 is: 46,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,132.73 : 85,731.50 = 30,836.89 : x
  2. Step 2: Convert to fraction form
    57,132.73/85,731.50 = 30,836.89/x
  3. Step 3: Cross multiply
    57,132.73x = 85,731.50 × 30,836.89
  4. Step 4: Simplify right side
    57,132.73x = 2,643,692,835.04
  5. Step 5: Solve for x
    x = 2,643,692,835.04/57,132.73
  6. Step 6: Final answer
    x = 46,272.83

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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.