Home / 87,929.86-121,349.16-49,676.14

Finding the Fourth Proportional to 87,929.86, 121,349.16 and 49,676.14

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Solution

The fourth proportional to 87,929.86, 121,349.16 and 49,676.14 is: 68,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,929.86 : 121,349.16 = 49,676.14 : x
  2. Step 2: Convert to fraction form
    87,929.86/121,349.16 = 49,676.14/x
  3. Step 3: Cross multiply
    87,929.86x = 121,349.16 × 49,676.14
  4. Step 4: Simplify right side
    87,929.86x = 6,028,157,861.04
  5. Step 5: Solve for x
    x = 6,028,157,861.04/87,929.86
  6. Step 6: Final answer
    x = 68,556.44

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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.