Home / 98,029.12-135,310.72-55,615.68

Finding the Fourth Proportional to 98,029.12, 135,310.72 and 55,615.68

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Solution

The fourth proportional to 98,029.12, 135,310.72 and 55,615.68 is: 76,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,029.12 : 135,310.72 = 55,615.68 : x
  2. Step 2: Convert to fraction form
    98,029.12/135,310.72 = 55,615.68/x
  3. Step 3: Cross multiply
    98,029.12x = 135,310.72 × 55,615.68
  4. Step 4: Simplify right side
    98,029.12x = 7,525,397,704.09
  5. Step 5: Solve for x
    x = 7,525,397,704.09/98,029.12
  6. Step 6: Final answer
    x = 76,766.96

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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.