Home / 84,621.38-126,917.73-39,647.42

Finding the Fourth Proportional to 84,621.38, 126,917.73 and 39,647.42

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Solution

The fourth proportional to 84,621.38, 126,917.73 and 39,647.42 is: 59,464.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.38 : 126,917.73 = 39,647.42 : x
  2. Step 2: Convert to fraction form
    84,621.38/126,917.73 = 39,647.42/x
  3. Step 3: Cross multiply
    84,621.38x = 126,917.73 × 39,647.42
  4. Step 4: Simplify right side
    84,621.38x = 5,031,960,546.76
  5. Step 5: Solve for x
    x = 5,031,960,546.76/84,621.38
  6. Step 6: Final answer
    x = 59,464.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.