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Finding the Fourth Proportional to 57,231.60, 85,847.40 and 54,315.60

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Solution

The fourth proportional to 57,231.60, 85,847.40 and 54,315.60 is: 81,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.60 : 85,847.40 = 54,315.60 : x
  2. Step 2: Convert to fraction form
    57,231.60/85,847.40 = 54,315.60/x
  3. Step 3: Cross multiply
    57,231.60x = 85,847.40 × 54,315.60
  4. Step 4: Simplify right side
    57,231.60x = 4,662,853,039.44
  5. Step 5: Solve for x
    x = 4,662,853,039.44/57,231.60
  6. Step 6: Final answer
    x = 81,473.40

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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.