Home / 68,178.12-93,773.40-54,719.76

Finding the Fourth Proportional to 68,178.12, 93,773.40 and 54,719.76

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Solution

The fourth proportional to 68,178.12, 93,773.40 and 54,719.76 is: 75,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,178.12 : 93,773.40 = 54,719.76 : x
  2. Step 2: Convert to fraction form
    68,178.12/93,773.40 = 54,719.76/x
  3. Step 3: Cross multiply
    68,178.12x = 93,773.40 × 54,719.76
  4. Step 4: Simplify right side
    68,178.12x = 5,131,257,942.38
  5. Step 5: Solve for x
    x = 5,131,257,942.38/68,178.12
  6. Step 6: Final answer
    x = 75,262.53

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1.5x scale

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.