Home / 98,112.85-135,396.65-55,668.04

Finding the Fourth Proportional to 98,112.85, 135,396.65 and 55,668.04

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Solution

The fourth proportional to 98,112.85, 135,396.65 and 55,668.04 is: 76,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,112.85 : 135,396.65 = 55,668.04 : x
  2. Step 2: Convert to fraction form
    98,112.85/135,396.65 = 55,668.04/x
  3. Step 3: Cross multiply
    98,112.85x = 135,396.65 × 55,668.04
  4. Step 4: Simplify right side
    98,112.85x = 7,537,266,128.07
  5. Step 5: Solve for x
    x = 7,537,266,128.07/98,112.85
  6. Step 6: Final answer
    x = 76,822.42

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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.