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Finding the Fourth Proportional to 57,322.40, 85,983.60 and 36,327.20

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Solution

The fourth proportional to 57,322.40, 85,983.60 and 36,327.20 is: 54,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,322.40 : 85,983.60 = 36,327.20 : x
  2. Step 2: Convert to fraction form
    57,322.40/85,983.60 = 36,327.20/x
  3. Step 3: Cross multiply
    57,322.40x = 85,983.60 × 36,327.20
  4. Step 4: Simplify right side
    57,322.40x = 3,123,543,433.92
  5. Step 5: Solve for x
    x = 3,123,543,433.92/57,322.40
  6. Step 6: Final answer
    x = 54,490.80

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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.