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Finding the Fourth Proportional to 68,144.79, 102,671.45 and 62,764.77

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Solution

The fourth proportional to 68,144.79, 102,671.45 and 62,764.77 is: 94,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,144.79 : 102,671.45 = 62,764.77 : x
  2. Step 2: Convert to fraction form
    68,144.79/102,671.45 = 62,764.77/x
  3. Step 3: Cross multiply
    68,144.79x = 102,671.45 × 62,764.77
  4. Step 4: Simplify right side
    68,144.79x = 6,444,150,251.38
  5. Step 5: Solve for x
    x = 6,444,150,251.38/68,144.79
  6. Step 6: Final answer
    x = 94,565.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.