Home / 68,545.16-102,795.72-21,787.10

Finding the Fourth Proportional to 68,545.16, 102,795.72 and 21,787.10

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Solution

The fourth proportional to 68,545.16, 102,795.72 and 21,787.10 is: 32,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,545.16 : 102,795.72 = 21,787.10 : x
  2. Step 2: Convert to fraction form
    68,545.16/102,795.72 = 21,787.10/x
  3. Step 3: Cross multiply
    68,545.16x = 102,795.72 × 21,787.10
  4. Step 4: Simplify right side
    68,545.16x = 2,239,620,631.21
  5. Step 5: Solve for x
    x = 2,239,620,631.21/68,545.16
  6. Step 6: Final answer
    x = 32,673.65

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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.