Home / 99,747.90-149,628.60-40,584.60

Finding the Fourth Proportional to 99,747.90, 149,628.60 and 40,584.60

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Solution

The fourth proportional to 99,747.90, 149,628.60 and 40,584.60 is: 60,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747.90 : 149,628.60 = 40,584.60 : x
  2. Step 2: Convert to fraction form
    99,747.90/149,628.60 = 40,584.60/x
  3. Step 3: Cross multiply
    99,747.90x = 149,628.60 × 40,584.60
  4. Step 4: Simplify right side
    99,747.90x = 6,072,616,879.56
  5. Step 5: Solve for x
    x = 6,072,616,879.56/99,747.90
  6. Step 6: Final answer
    x = 60,879.65

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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.