Home / 84,416.33-126,631.20-28,256.73

Finding the Fourth Proportional to 84,416.33, 126,631.20 and 28,256.73

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Solution

The fourth proportional to 84,416.33, 126,631.20 and 28,256.73 is: 42,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,416.33 : 126,631.20 = 28,256.73 : x
  2. Step 2: Convert to fraction form
    84,416.33/126,631.20 = 28,256.73/x
  3. Step 3: Cross multiply
    84,416.33x = 126,631.20 × 28,256.73
  4. Step 4: Simplify right side
    84,416.33x = 3,578,183,627.98
  5. Step 5: Solve for x
    x = 3,578,183,627.98/84,416.33
  6. Step 6: Final answer
    x = 42,387.34

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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.