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Finding the Fourth Proportional to 68,600.32, 102,484.79 and 43,438.89

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Solution

The fourth proportional to 68,600.32, 102,484.79 and 43,438.89 is: 64,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,600.32 : 102,484.79 = 43,438.89 : x
  2. Step 2: Convert to fraction form
    68,600.32/102,484.79 = 43,438.89/x
  3. Step 3: Cross multiply
    68,600.32x = 102,484.79 × 43,438.89
  4. Step 4: Simplify right side
    68,600.32x = 4,451,825,519.48
  5. Step 5: Solve for x
    x = 4,451,825,519.48/68,600.32
  6. Step 6: Final answer
    x = 64,895.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.