Home / 91,029.80-125,625-50,743.56

Finding the Fourth Proportional to 91,029.80, 125,625 and 50,743.56

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Solution

The fourth proportional to 91,029.80, 125,625 and 50,743.56 is: 70,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,029.80 : 125,625 = 50,743.56 : x
  2. Step 2: Convert to fraction form
    91,029.80/125,625 = 50,743.56/x
  3. Step 3: Cross multiply
    91,029.80x = 125,625 × 50,743.56
  4. Step 4: Simplify right side
    91,029.80x = 6,374,659,725
  5. Step 5: Solve for x
    x = 6,374,659,725/91,029.80
  6. Step 6: Final answer
    x = 70,028.27

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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.