Home / 99,085.11-148,634.73-39,921.09

Finding the Fourth Proportional to 99,085.11, 148,634.73 and 39,921.09

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Solution

The fourth proportional to 99,085.11, 148,634.73 and 39,921.09 is: 59,884.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,085.11 : 148,634.73 = 39,921.09 : x
  2. Step 2: Convert to fraction form
    99,085.11/148,634.73 = 39,921.09/x
  3. Step 3: Cross multiply
    99,085.11x = 148,634.73 × 39,921.09
  4. Step 4: Simplify right side
    99,085.11x = 5,933,660,433.46
  5. Step 5: Solve for x
    x = 5,933,660,433.46/99,085.11
  6. Step 6: Final answer
    x = 59,884.48

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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.