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Finding the Fourth Proportional to 57,758.67, 86,627.07 and 28,146.69

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Solution

The fourth proportional to 57,758.67, 86,627.07 and 28,146.69 is: 42,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,758.67 : 86,627.07 = 28,146.69 : x
  2. Step 2: Convert to fraction form
    57,758.67/86,627.07 = 28,146.69/x
  3. Step 3: Cross multiply
    57,758.67x = 86,627.07 × 28,146.69
  4. Step 4: Simplify right side
    57,758.67x = 2,438,265,284.90
  5. Step 5: Solve for x
    x = 2,438,265,284.90/57,758.67
  6. Step 6: Final answer
    x = 42,214.71

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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.