Home / 84,204.60-126,279.56-28,029.63

Finding the Fourth Proportional to 84,204.60, 126,279.56 and 28,029.63

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Solution

The fourth proportional to 84,204.60, 126,279.56 and 28,029.63 is: 42,035.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,204.60 : 126,279.56 = 28,029.63 : x
  2. Step 2: Convert to fraction form
    84,204.60/126,279.56 = 28,029.63/x
  3. Step 3: Cross multiply
    84,204.60x = 126,279.56 × 28,029.63
  4. Step 4: Simplify right side
    84,204.60x = 3,539,568,930.00
  5. Step 5: Solve for x
    x = 3,539,568,930.00/84,204.60
  6. Step 6: Final answer
    x = 42,035.34

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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.