Home / 89,542.78-123,569.32-49,259.60

Finding the Fourth Proportional to 89,542.78, 123,569.32 and 49,259.60

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Solution

The fourth proportional to 89,542.78, 123,569.32 and 49,259.60 is: 67,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,542.78 : 123,569.32 = 49,259.60 : x
  2. Step 2: Convert to fraction form
    89,542.78/123,569.32 = 49,259.60/x
  3. Step 3: Cross multiply
    89,542.78x = 123,569.32 × 49,259.60
  4. Step 4: Simplify right side
    89,542.78x = 6,086,975,461.25
  5. Step 5: Solve for x
    x = 6,086,975,461.25/89,542.78
  6. Step 6: Final answer
    x = 67,978.41

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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.