Home / 99,790.43-149,709.56-33,231.15

Finding the Fourth Proportional to 99,790.43, 149,709.56 and 33,231.15

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Solution

The fourth proportional to 99,790.43, 149,709.56 and 33,231.15 is: 49,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.43 : 149,709.56 = 33,231.15 : x
  2. Step 2: Convert to fraction form
    99,790.43/149,709.56 = 33,231.15/x
  3. Step 3: Cross multiply
    99,790.43x = 149,709.56 × 33,231.15
  4. Step 4: Simplify right side
    99,790.43x = 4,975,020,678.64
  5. Step 5: Solve for x
    x = 4,975,020,678.64/99,790.43
  6. Step 6: Final answer
    x = 49,854.69

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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.