Home / 84,205.83-126,294.38-28,039.56

Finding the Fourth Proportional to 84,205.83, 126,294.38 and 28,039.56

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Solution

The fourth proportional to 84,205.83, 126,294.38 and 28,039.56 is: 42,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,205.83 : 126,294.38 = 28,039.56 : x
  2. Step 2: Convert to fraction form
    84,205.83/126,294.38 = 28,039.56/x
  3. Step 3: Cross multiply
    84,205.83x = 126,294.38 × 28,039.56
  4. Step 4: Simplify right side
    84,205.83x = 3,541,238,705.48
  5. Step 5: Solve for x
    x = 3,541,238,705.48/84,205.83
  6. Step 6: Final answer
    x = 42,054.55

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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.