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Finding the Fourth Proportional to 68,950.02, 95,144.31 and 38,728.50

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Solution

The fourth proportional to 68,950.02, 95,144.31 and 38,728.50 is: 53,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,950.02 : 95,144.31 = 38,728.50 : x
  2. Step 2: Convert to fraction form
    68,950.02/95,144.31 = 38,728.50/x
  3. Step 3: Cross multiply
    68,950.02x = 95,144.31 × 38,728.50
  4. Step 4: Simplify right side
    68,950.02x = 3,684,796,409.84
  5. Step 5: Solve for x
    x = 3,684,796,409.84/68,950.02
  6. Step 6: Final answer
    x = 53,441.56

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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.