Home / 87,759.38-121,058.73-53,784.33

Finding the Fourth Proportional to 87,759.38, 121,058.73 and 53,784.33

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Solution

The fourth proportional to 87,759.38, 121,058.73 and 53,784.33 is: 74,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,759.38 : 121,058.73 = 53,784.33 : x
  2. Step 2: Convert to fraction form
    87,759.38/121,058.73 = 53,784.33/x
  3. Step 3: Cross multiply
    87,759.38x = 121,058.73 × 53,784.33
  4. Step 4: Simplify right side
    87,759.38x = 6,511,062,683.70
  5. Step 5: Solve for x
    x = 6,511,062,683.70/87,759.38
  6. Step 6: Final answer
    x = 74,192.21

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1.5x scale

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.