Home / 57,728.18-79,719.84-54,583.16

Finding the Fourth Proportional to 57,728.18, 79,719.84 and 54,583.16

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Solution

The fourth proportional to 57,728.18, 79,719.84 and 54,583.16 is: 75,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.18 : 79,719.84 = 54,583.16 : x
  2. Step 2: Convert to fraction form
    57,728.18/79,719.84 = 54,583.16/x
  3. Step 3: Cross multiply
    57,728.18x = 79,719.84 × 54,583.16
  4. Step 4: Simplify right side
    57,728.18x = 4,351,360,383.30
  5. Step 5: Solve for x
    x = 4,351,360,383.30/57,728.18
  6. Step 6: Final answer
    x = 75,376.72

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Why These Related Problems?

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