Home / 81,055.20-111,855.75-47,072.04

Finding the Fourth Proportional to 81,055.20, 111,855.75 and 47,072.04

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Solution

The fourth proportional to 81,055.20, 111,855.75 and 47,072.04 is: 64,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,055.20 : 111,855.75 = 47,072.04 : x
  2. Step 2: Convert to fraction form
    81,055.20/111,855.75 = 47,072.04/x
  3. Step 3: Cross multiply
    81,055.20x = 111,855.75 × 47,072.04
  4. Step 4: Simplify right side
    81,055.20x = 5,265,278,338.23
  5. Step 5: Solve for x
    x = 5,265,278,338.23/81,055.20
  6. Step 6: Final answer
    x = 64,959.17

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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.