Home / 98,081.16-135,348.48-55,647.96

Finding the Fourth Proportional to 98,081.16, 135,348.48 and 55,647.96

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Solution

The fourth proportional to 98,081.16, 135,348.48 and 55,647.96 is: 76,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,081.16 : 135,348.48 = 55,647.96 : x
  2. Step 2: Convert to fraction form
    98,081.16/135,348.48 = 55,647.96/x
  3. Step 3: Cross multiply
    98,081.16x = 135,348.48 × 55,647.96
  4. Step 4: Simplify right side
    98,081.16x = 7,531,866,801.10
  5. Step 5: Solve for x
    x = 7,531,866,801.10/98,081.16
  6. Step 6: Final answer
    x = 76,792.19

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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.