Home / 89,918.36-124,091.46-51,690.31

Finding the Fourth Proportional to 89,918.36, 124,091.46 and 51,690.31

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Solution

The fourth proportional to 89,918.36, 124,091.46 and 51,690.31 is: 71,335.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,918.36 : 124,091.46 = 51,690.31 : x
  2. Step 2: Convert to fraction form
    89,918.36/124,091.46 = 51,690.31/x
  3. Step 3: Cross multiply
    89,918.36x = 124,091.46 × 51,690.31
  4. Step 4: Simplify right side
    89,918.36x = 6,414,326,035.75
  5. Step 5: Solve for x
    x = 6,414,326,035.75/89,918.36
  6. Step 6: Final answer
    x = 71,335.00

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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.