Home / 90,709.69-125,182.07-54,906.25

Finding the Fourth Proportional to 90,709.69, 125,182.07 and 54,906.25

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Solution

The fourth proportional to 90,709.69, 125,182.07 and 54,906.25 is: 75,772.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,709.69 : 125,182.07 = 54,906.25 : x
  2. Step 2: Convert to fraction form
    90,709.69/125,182.07 = 54,906.25/x
  3. Step 3: Cross multiply
    90,709.69x = 125,182.07 × 54,906.25
  4. Step 4: Simplify right side
    90,709.69x = 6,873,277,542.29
  5. Step 5: Solve for x
    x = 6,873,277,542.29/90,709.69
  6. Step 6: Final answer
    x = 75,772.26

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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.