Home / 77,906.24-116,821.92-40,428.48

Finding the Fourth Proportional to 77,906.24, 116,821.92 and 40,428.48

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Solution

The fourth proportional to 77,906.24, 116,821.92 and 40,428.48 is: 60,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,906.24 : 116,821.92 = 40,428.48 : x
  2. Step 2: Convert to fraction form
    77,906.24/116,821.92 = 40,428.48/x
  3. Step 3: Cross multiply
    77,906.24x = 116,821.92 × 40,428.48
  4. Step 4: Simplify right side
    77,906.24x = 4,722,932,656.28
  5. Step 5: Solve for x
    x = 4,722,932,656.28/77,906.24
  6. Step 6: Final answer
    x = 60,623.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.