Home / 62,972.11-86,902.10-34,678

Finding the Fourth Proportional to 62,972.11, 86,902.10 and 34,678

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Solution

The fourth proportional to 62,972.11, 86,902.10 and 34,678 is: 47,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,972.11 : 86,902.10 = 34,678 : x
  2. Step 2: Convert to fraction form
    62,972.11/86,902.10 = 34,678/x
  3. Step 3: Cross multiply
    62,972.11x = 86,902.10 × 34,678
  4. Step 4: Simplify right side
    62,972.11x = 3,013,591,023.80
  5. Step 5: Solve for x
    x = 3,013,591,023.80/62,972.11
  6. Step 6: Final answer
    x = 47,855.96

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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.