Home / 89,936.72-124,109.40-49,649.60

Finding the Fourth Proportional to 89,936.72, 124,109.40 and 49,649.60

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Solution

The fourth proportional to 89,936.72, 124,109.40 and 49,649.60 is: 68,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,936.72 : 124,109.40 = 49,649.60 : x
  2. Step 2: Convert to fraction form
    89,936.72/124,109.40 = 49,649.60/x
  3. Step 3: Cross multiply
    89,936.72x = 124,109.40 × 49,649.60
  4. Step 4: Simplify right side
    89,936.72x = 6,161,982,066.24
  5. Step 5: Solve for x
    x = 6,161,982,066.24/89,936.72
  6. Step 6: Final answer
    x = 68,514.64

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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.