Home / 84,510.20-126,676.74-28,336.52

Finding the Fourth Proportional to 84,510.20, 126,676.74 and 28,336.52

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Solution

The fourth proportional to 84,510.20, 126,676.74 and 28,336.52 is: 42,475.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,510.20 : 126,676.74 = 28,336.52 : x
  2. Step 2: Convert to fraction form
    84,510.20/126,676.74 = 28,336.52/x
  3. Step 3: Cross multiply
    84,510.20x = 126,676.74 × 28,336.52
  4. Step 4: Simplify right side
    84,510.20x = 3,589,577,976.54
  5. Step 5: Solve for x
    x = 3,589,577,976.54/84,510.20
  6. Step 6: Final answer
    x = 42,475.09

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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.