Home / 77,764.78-116,642.31-40,313.62

Finding the Fourth Proportional to 77,764.78, 116,642.31 and 40,313.62

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Solution

The fourth proportional to 77,764.78, 116,642.31 and 40,313.62 is: 60,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.78 : 116,642.31 = 40,313.62 : x
  2. Step 2: Convert to fraction form
    77,764.78/116,642.31 = 40,313.62/x
  3. Step 3: Cross multiply
    77,764.78x = 116,642.31 × 40,313.62
  4. Step 4: Simplify right side
    77,764.78x = 4,702,273,761.26
  5. Step 5: Solve for x
    x = 4,702,273,761.26/77,764.78
  6. Step 6: Final answer
    x = 60,467.91

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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.