Home / 98,268.82-135,611.42-55,829.68

Finding the Fourth Proportional to 98,268.82, 135,611.42 and 55,829.68

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Solution

The fourth proportional to 98,268.82, 135,611.42 and 55,829.68 is: 77,045.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,268.82 : 135,611.42 = 55,829.68 : x
  2. Step 2: Convert to fraction form
    98,268.82/135,611.42 = 55,829.68/x
  3. Step 3: Cross multiply
    98,268.82x = 135,611.42 × 55,829.68
  4. Step 4: Simplify right side
    98,268.82x = 7,571,142,182.95
  5. Step 5: Solve for x
    x = 7,571,142,182.95/98,268.82
  6. Step 6: Final answer
    x = 77,045.21

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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.