Home / 77,174.10-115,784.51-36,678.29

Finding the Fourth Proportional to 77,174.10, 115,784.51 and 36,678.29

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Solution

The fourth proportional to 77,174.10, 115,784.51 and 36,678.29 is: 55,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,174.10 : 115,784.51 = 36,678.29 : x
  2. Step 2: Convert to fraction form
    77,174.10/115,784.51 = 36,678.29/x
  3. Step 3: Cross multiply
    77,174.10x = 115,784.51 × 36,678.29
  4. Step 4: Simplify right side
    77,174.10x = 4,246,777,072.97
  5. Step 5: Solve for x
    x = 4,246,777,072.97/77,174.10
  6. Step 6: Final answer
    x = 55,028.53

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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.