Home / 89,787.96-123,902.40-49,501.68

Finding the Fourth Proportional to 89,787.96, 123,902.40 and 49,501.68

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Solution

The fourth proportional to 89,787.96, 123,902.40 and 49,501.68 is: 68,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,787.96 : 123,902.40 = 49,501.68 : x
  2. Step 2: Convert to fraction form
    89,787.96/123,902.40 = 49,501.68/x
  3. Step 3: Cross multiply
    89,787.96x = 123,902.40 × 49,501.68
  4. Step 4: Simplify right side
    89,787.96x = 6,133,376,956.03
  5. Step 5: Solve for x
    x = 6,133,376,956.03/89,787.96
  6. Step 6: Final answer
    x = 68,309.57

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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.