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Finding the Fourth Proportional to 68,908.47, 95,102.10 and 38,695.07

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Solution

The fourth proportional to 68,908.47, 95,102.10 and 38,695.07 is: 53,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,908.47 : 95,102.10 = 38,695.07 : x
  2. Step 2: Convert to fraction form
    68,908.47/95,102.10 = 38,695.07/x
  3. Step 3: Cross multiply
    68,908.47x = 95,102.10 × 38,695.07
  4. Step 4: Simplify right side
    68,908.47x = 3,679,981,941.14
  5. Step 5: Solve for x
    x = 3,679,981,941.14/68,908.47
  6. Step 6: Final answer
    x = 53,403.91

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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.