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Finding the Fourth Proportional to 62,451.78, 86,102.10 and 45,458.79

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Solution

The fourth proportional to 62,451.78, 86,102.10 and 45,458.79 is: 62,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,451.78 : 86,102.10 = 45,458.79 : x
  2. Step 2: Convert to fraction form
    62,451.78/86,102.10 = 45,458.79/x
  3. Step 3: Cross multiply
    62,451.78x = 86,102.10 × 45,458.79
  4. Step 4: Simplify right side
    62,451.78x = 3,914,097,282.46
  5. Step 5: Solve for x
    x = 3,914,097,282.46/62,451.78
  6. Step 6: Final answer
    x = 62,673.91

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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.