Home / 98,028.48-135,255.72-57,739.08

Finding the Fourth Proportional to 98,028.48, 135,255.72 and 57,739.08

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Solution

The fourth proportional to 98,028.48, 135,255.72 and 57,739.08 is: 79,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,028.48 : 135,255.72 = 57,739.08 : x
  2. Step 2: Convert to fraction form
    98,028.48/135,255.72 = 57,739.08/x
  3. Step 3: Cross multiply
    98,028.48x = 135,255.72 × 57,739.08
  4. Step 4: Simplify right side
    98,028.48x = 7,809,540,837.54
  5. Step 5: Solve for x
    x = 7,809,540,837.54/98,028.48
  6. Step 6: Final answer
    x = 79,666.04

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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.