Home / 89,939.86-124,115.03-49,102.59

Finding the Fourth Proportional to 89,939.86, 124,115.03 and 49,102.59

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Solution

The fourth proportional to 89,939.86, 124,115.03 and 49,102.59 is: 67,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,939.86 : 124,115.03 = 49,102.59 : x
  2. Step 2: Convert to fraction form
    89,939.86/124,115.03 = 49,102.59/x
  3. Step 3: Cross multiply
    89,939.86x = 124,115.03 × 49,102.59
  4. Step 4: Simplify right side
    89,939.86x = 6,094,368,997.88
  5. Step 5: Solve for x
    x = 6,094,368,997.88/89,939.86
  6. Step 6: Final answer
    x = 67,760.49

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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.