Home / 77,718.78-107,244.31-43,726.56

Finding the Fourth Proportional to 77,718.78, 107,244.31 and 43,726.56

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Solution

The fourth proportional to 77,718.78, 107,244.31 and 43,726.56 is: 60,338.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,718.78 : 107,244.31 = 43,726.56 : x
  2. Step 2: Convert to fraction form
    77,718.78/107,244.31 = 43,726.56/x
  3. Step 3: Cross multiply
    77,718.78x = 107,244.31 × 43,726.56
  4. Step 4: Simplify right side
    77,718.78x = 4,689,424,219.65
  5. Step 5: Solve for x
    x = 4,689,424,219.65/77,718.78
  6. Step 6: Final answer
    x = 60,338.37

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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.