Home / 79,940.05-110,312.96-49,724.51

Finding the Fourth Proportional to 79,940.05, 110,312.96 and 49,724.51

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Solution

The fourth proportional to 79,940.05, 110,312.96 and 49,724.51 is: 68,617.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,940.05 : 110,312.96 = 49,724.51 : x
  2. Step 2: Convert to fraction form
    79,940.05/110,312.96 = 49,724.51/x
  3. Step 3: Cross multiply
    79,940.05x = 110,312.96 × 49,724.51
  4. Step 4: Simplify right side
    79,940.05x = 5,485,257,082.46
  5. Step 5: Solve for x
    x = 5,485,257,082.46/79,940.05
  6. Step 6: Final answer
    x = 68,617.14

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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.