Home / 79,719.62-110,010.81-43,420.25

Finding the Fourth Proportional to 79,719.62, 110,010.81 and 43,420.25

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Solution

The fourth proportional to 79,719.62, 110,010.81 and 43,420.25 is: 59,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.62 : 110,010.81 = 43,420.25 : x
  2. Step 2: Convert to fraction form
    79,719.62/110,010.81 = 43,420.25/x
  3. Step 3: Cross multiply
    79,719.62x = 110,010.81 × 43,420.25
  4. Step 4: Simplify right side
    79,719.62x = 4,776,696,872.90
  5. Step 5: Solve for x
    x = 4,776,696,872.90/79,719.62
  6. Step 6: Final answer
    x = 59,918.71

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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.