Home / 99,081.36-148,629.11-39,917.34

Finding the Fourth Proportional to 99,081.36, 148,629.11 and 39,917.34

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Solution

The fourth proportional to 99,081.36, 148,629.11 and 39,917.34 is: 59,878.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,081.36 : 148,629.11 = 39,917.34 : x
  2. Step 2: Convert to fraction form
    99,081.36/148,629.11 = 39,917.34/x
  3. Step 3: Cross multiply
    99,081.36x = 148,629.11 × 39,917.34
  4. Step 4: Simplify right side
    99,081.36x = 5,932,878,518.18
  5. Step 5: Solve for x
    x = 5,932,878,518.18/99,081.36
  6. Step 6: Final answer
    x = 59,878.86

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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.