Home / 90,743.88-125,226.90-62,400.36

Finding the Fourth Proportional to 90,743.88, 125,226.90 and 62,400.36

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Solution

The fourth proportional to 90,743.88, 125,226.90 and 62,400.36 is: 86,112.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,743.88 : 125,226.90 = 62,400.36 : x
  2. Step 2: Convert to fraction form
    90,743.88/125,226.90 = 62,400.36/x
  3. Step 3: Cross multiply
    90,743.88x = 125,226.90 × 62,400.36
  4. Step 4: Simplify right side
    90,743.88x = 7,814,203,641.68
  5. Step 5: Solve for x
    x = 7,814,203,641.68/90,743.88
  6. Step 6: Final answer
    x = 86,112.73

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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.