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Finding the Fourth Proportional to 68,510.65, 102,753.85 and 18,594.63

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Solution

The fourth proportional to 68,510.65, 102,753.85 and 18,594.63 is: 27,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510.65 : 102,753.85 = 18,594.63 : x
  2. Step 2: Convert to fraction form
    68,510.65/102,753.85 = 18,594.63/x
  3. Step 3: Cross multiply
    68,510.65x = 102,753.85 × 18,594.63
  4. Step 4: Simplify right side
    68,510.65x = 1,910,669,821.83
  5. Step 5: Solve for x
    x = 1,910,669,821.83/68,510.65
  6. Step 6: Final answer
    x = 27,888.65

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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.