Home / 68,275.28-102,237.24-54,885.20

Finding the Fourth Proportional to 68,275.28, 102,237.24 and 54,885.20

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Solution

The fourth proportional to 68,275.28, 102,237.24 and 54,885.20 is: 82,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,275.28 : 102,237.24 = 54,885.20 : x
  2. Step 2: Convert to fraction form
    68,275.28/102,237.24 = 54,885.20/x
  3. Step 3: Cross multiply
    68,275.28x = 102,237.24 × 54,885.20
  4. Step 4: Simplify right side
    68,275.28x = 5,611,311,364.85
  5. Step 5: Solve for x
    x = 5,611,311,364.85/68,275.28
  6. Step 6: Final answer
    x = 82,186.57

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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.