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Finding the Fourth Proportional to 57,291.80, 85,864.80 and 27,645.80

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Solution

The fourth proportional to 57,291.80, 85,864.80 and 27,645.80 is: 41,433.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,291.80 : 85,864.80 = 27,645.80 : x
  2. Step 2: Convert to fraction form
    57,291.80/85,864.80 = 27,645.80/x
  3. Step 3: Cross multiply
    57,291.80x = 85,864.80 × 27,645.80
  4. Step 4: Simplify right side
    57,291.80x = 2,373,801,087.84
  5. Step 5: Solve for x
    x = 2,373,801,087.84/57,291.80
  6. Step 6: Final answer
    x = 41,433.52

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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.