Home / 84,039.28-126,058.94-21,709.80

Finding the Fourth Proportional to 84,039.28, 126,058.94 and 21,709.80

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Solution

The fourth proportional to 84,039.28, 126,058.94 and 21,709.80 is: 32,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,039.28 : 126,058.94 = 21,709.80 : x
  2. Step 2: Convert to fraction form
    84,039.28/126,058.94 = 21,709.80/x
  3. Step 3: Cross multiply
    84,039.28x = 126,058.94 × 21,709.80
  4. Step 4: Simplify right side
    84,039.28x = 2,736,714,375.61
  5. Step 5: Solve for x
    x = 2,736,714,375.61/84,039.28
  6. Step 6: Final answer
    x = 32,564.71

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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.