Home / 89,787.96-123,770.22-57,916.08

Finding the Fourth Proportional to 89,787.96, 123,770.22 and 57,916.08

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Solution

The fourth proportional to 89,787.96, 123,770.22 and 57,916.08 is: 79,835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,787.96 : 123,770.22 = 57,916.08 : x
  2. Step 2: Convert to fraction form
    89,787.96/123,770.22 = 57,916.08/x
  3. Step 3: Cross multiply
    89,787.96x = 123,770.22 × 57,916.08
  4. Step 4: Simplify right side
    89,787.96x = 7,168,285,963.14
  5. Step 5: Solve for x
    x = 7,168,285,963.14/89,787.96
  6. Step 6: Final answer
    x = 79,835.71

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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.