Home / 68,626.76-102,929.61-18,710.87

Finding the Fourth Proportional to 68,626.76, 102,929.61 and 18,710.87

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Solution

The fourth proportional to 68,626.76, 102,929.61 and 18,710.87 is: 28,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,626.76 : 102,929.61 = 18,710.87 : x
  2. Step 2: Convert to fraction form
    68,626.76/102,929.61 = 18,710.87/x
  3. Step 3: Cross multiply
    68,626.76x = 102,929.61 × 18,710.87
  4. Step 4: Simplify right side
    68,626.76x = 1,925,902,551.86
  5. Step 5: Solve for x
    x = 1,925,902,551.86/68,626.76
  6. Step 6: Final answer
    x = 28,063.43

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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.