Home / 84,389.16-116,351.19-54,121.08

Finding the Fourth Proportional to 84,389.16, 116,351.19 and 54,121.08

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Solution

The fourth proportional to 84,389.16, 116,351.19 and 54,121.08 is: 74,619.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.16 : 116,351.19 = 54,121.08 : x
  2. Step 2: Convert to fraction form
    84,389.16/116,351.19 = 54,121.08/x
  3. Step 3: Cross multiply
    84,389.16x = 116,351.19 × 54,121.08
  4. Step 4: Simplify right side
    84,389.16x = 6,297,052,062.09
  5. Step 5: Solve for x
    x = 6,297,052,062.09/84,389.16
  6. Step 6: Final answer
    x = 74,619.21

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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.