Home / 98,272.20-135,615.66-55,830.80

Finding the Fourth Proportional to 98,272.20, 135,615.66 and 55,830.80

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Solution

The fourth proportional to 98,272.20, 135,615.66 and 55,830.80 is: 77,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,272.20 : 135,615.66 = 55,830.80 : x
  2. Step 2: Convert to fraction form
    98,272.20/135,615.66 = 55,830.80/x
  3. Step 3: Cross multiply
    98,272.20x = 135,615.66 × 55,830.80
  4. Step 4: Simplify right side
    98,272.20x = 7,571,530,790.33
  5. Step 5: Solve for x
    x = 7,571,530,790.33/98,272.20
  6. Step 6: Final answer
    x = 77,046.52

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1.5x scale

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.