Home / 89,657.46-123,685.73-57,836.61

Finding the Fourth Proportional to 89,657.46, 123,685.73 and 57,836.61

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Solution

The fourth proportional to 89,657.46, 123,685.73 and 57,836.61 is: 79,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,657.46 : 123,685.73 = 57,836.61 : x
  2. Step 2: Convert to fraction form
    89,657.46/123,685.73 = 57,836.61/x
  3. Step 3: Cross multiply
    89,657.46x = 123,685.73 × 57,836.61
  4. Step 4: Simplify right side
    89,657.46x = 7,153,563,039.39
  5. Step 5: Solve for x
    x = 7,153,563,039.39/89,657.46
  6. Step 6: Final answer
    x = 79,787.71

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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.