Home / 68,666.92-102,974.46-31,705

Finding the Fourth Proportional to 68,666.92, 102,974.46 and 31,705

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Solution

The fourth proportional to 68,666.92, 102,974.46 and 31,705 is: 47,545.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,666.92 : 102,974.46 = 31,705 : x
  2. Step 2: Convert to fraction form
    68,666.92/102,974.46 = 31,705/x
  3. Step 3: Cross multiply
    68,666.92x = 102,974.46 × 31,705
  4. Step 4: Simplify right side
    68,666.92x = 3,264,805,254.30
  5. Step 5: Solve for x
    x = 3,264,805,254.30/68,666.92
  6. Step 6: Final answer
    x = 47,545.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.