Home / 98,271.57-135,575.37-61,961.07

Finding the Fourth Proportional to 98,271.57, 135,575.37 and 61,961.07

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Solution

The fourth proportional to 98,271.57, 135,575.37 and 61,961.07 is: 85,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,271.57 : 135,575.37 = 61,961.07 : x
  2. Step 2: Convert to fraction form
    98,271.57/135,575.37 = 61,961.07/x
  3. Step 3: Cross multiply
    98,271.57x = 135,575.37 × 61,961.07
  4. Step 4: Simplify right side
    98,271.57x = 8,400,394,990.85
  5. Step 5: Solve for x
    x = 8,400,394,990.85/98,271.57
  6. Step 6: Final answer
    x = 85,481.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.