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Finding the Fourth Proportional to 57,872.64, 79,868.16 and 32,728.32

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Solution

The fourth proportional to 57,872.64, 79,868.16 and 32,728.32 is: 45,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.64 : 79,868.16 = 32,728.32 : x
  2. Step 2: Convert to fraction form
    57,872.64/79,868.16 = 32,728.32/x
  3. Step 3: Cross multiply
    57,872.64x = 79,868.16 × 32,728.32
  4. Step 4: Simplify right side
    57,872.64x = 2,613,950,698.29
  5. Step 5: Solve for x
    x = 2,613,950,698.29/57,872.64
  6. Step 6: Final answer
    x = 45,167.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.