Home / 89,827.65-123,930.85-57,580.05

Finding the Fourth Proportional to 89,827.65, 123,930.85 and 57,580.05

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Solution

The fourth proportional to 89,827.65, 123,930.85 and 57,580.05 is: 79,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,827.65 : 123,930.85 = 57,580.05 : x
  2. Step 2: Convert to fraction form
    89,827.65/123,930.85 = 57,580.05/x
  3. Step 3: Cross multiply
    89,827.65x = 123,930.85 × 57,580.05
  4. Step 4: Simplify right side
    89,827.65x = 7,135,944,251.64
  5. Step 5: Solve for x
    x = 7,135,944,251.64/89,827.65
  6. Step 6: Final answer
    x = 79,440.40

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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.