Home / 79,578.10-109,816.81-43,767.34

Finding the Fourth Proportional to 79,578.10, 109,816.81 and 43,767.34

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Solution

The fourth proportional to 79,578.10, 109,816.81 and 43,767.34 is: 60,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,578.10 : 109,816.81 = 43,767.34 : x
  2. Step 2: Convert to fraction form
    79,578.10/109,816.81 = 43,767.34/x
  3. Step 3: Cross multiply
    79,578.10x = 109,816.81 × 43,767.34
  4. Step 4: Simplify right side
    79,578.10x = 4,806,388,893.06
  5. Step 5: Solve for x
    x = 4,806,388,893.06/79,578.10
  6. Step 6: Final answer
    x = 60,398.39

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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.