Home / 89,707.08-123,791.22-49,420.04

Finding the Fourth Proportional to 89,707.08, 123,791.22 and 49,420.04

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Solution

The fourth proportional to 89,707.08, 123,791.22 and 49,420.04 is: 68,197.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,707.08 : 123,791.22 = 49,420.04 : x
  2. Step 2: Convert to fraction form
    89,707.08/123,791.22 = 49,420.04/x
  3. Step 3: Cross multiply
    89,707.08x = 123,791.22 × 49,420.04
  4. Step 4: Simplify right side
    89,707.08x = 6,117,767,044.05
  5. Step 5: Solve for x
    x = 6,117,767,044.05/89,707.08
  6. Step 6: Final answer
    x = 68,197.15

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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.