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Finding the Fourth Proportional to 57,221.40, 85,807.80 and 27,648.30

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Solution

The fourth proportional to 57,221.40, 85,807.80 and 27,648.30 is: 41,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,221.40 : 85,807.80 = 27,648.30 : x
  2. Step 2: Convert to fraction form
    57,221.40/85,807.80 = 27,648.30/x
  3. Step 3: Cross multiply
    57,221.40x = 85,807.80 × 27,648.30
  4. Step 4: Simplify right side
    57,221.40x = 2,372,439,796.74
  5. Step 5: Solve for x
    x = 2,372,439,796.74/57,221.40
  6. Step 6: Final answer
    x = 41,460.71

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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.