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Finding the Fourth Proportional to 68,885.88, 103,230.24 and 39,242.46

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Solution

The fourth proportional to 68,885.88, 103,230.24 and 39,242.46 is: 58,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,885.88 : 103,230.24 = 39,242.46 : x
  2. Step 2: Convert to fraction form
    68,885.88/103,230.24 = 39,242.46/x
  3. Step 3: Cross multiply
    68,885.88x = 103,230.24 × 39,242.46
  4. Step 4: Simplify right side
    68,885.88x = 4,051,008,563.99
  5. Step 5: Solve for x
    x = 4,051,008,563.99/68,885.88
  6. Step 6: Final answer
    x = 58,807.53

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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.