Home / 68,793.08-103,178.10-31,341.56

Finding the Fourth Proportional to 68,793.08, 103,178.10 and 31,341.56

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Solution

The fourth proportional to 68,793.08, 103,178.10 and 31,341.56 is: 47,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.08 : 103,178.10 = 31,341.56 : x
  2. Step 2: Convert to fraction form
    68,793.08/103,178.10 = 31,341.56/x
  3. Step 3: Cross multiply
    68,793.08x = 103,178.10 × 31,341.56
  4. Step 4: Simplify right side
    68,793.08x = 3,233,762,611.84
  5. Step 5: Solve for x
    x = 3,233,762,611.84/68,793.08
  6. Step 6: Final answer
    x = 47,007.09

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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.