Home / 98,540.33-135,985.62-53,218.32

Finding the Fourth Proportional to 98,540.33, 135,985.62 and 53,218.32

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Solution

The fourth proportional to 98,540.33, 135,985.62 and 53,218.32 is: 73,441.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,540.33 : 135,985.62 = 53,218.32 : x
  2. Step 2: Convert to fraction form
    98,540.33/135,985.62 = 53,218.32/x
  3. Step 3: Cross multiply
    98,540.33x = 135,985.62 × 53,218.32
  4. Step 4: Simplify right side
    98,540.33x = 7,236,925,974.47
  5. Step 5: Solve for x
    x = 7,236,925,974.47/98,540.33
  6. Step 6: Final answer
    x = 73,441.26

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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.