Home / 84,327.88-126,504.78-28,150.60

Finding the Fourth Proportional to 84,327.88, 126,504.78 and 28,150.60

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Solution

The fourth proportional to 84,327.88, 126,504.78 and 28,150.60 is: 42,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,327.88 : 126,504.78 = 28,150.60 : x
  2. Step 2: Convert to fraction form
    84,327.88/126,504.78 = 28,150.60/x
  3. Step 3: Cross multiply
    84,327.88x = 126,504.78 × 28,150.60
  4. Step 4: Simplify right side
    84,327.88x = 3,561,185,459.87
  5. Step 5: Solve for x
    x = 3,561,185,459.87/84,327.88
  6. Step 6: Final answer
    x = 42,230.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.