Home / 84,524.10-126,786.15-51,281.70

Finding the Fourth Proportional to 84,524.10, 126,786.15 and 51,281.70

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Solution

The fourth proportional to 84,524.10, 126,786.15 and 51,281.70 is: 76,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,524.10 : 126,786.15 = 51,281.70 : x
  2. Step 2: Convert to fraction form
    84,524.10/126,786.15 = 51,281.70/x
  3. Step 3: Cross multiply
    84,524.10x = 126,786.15 × 51,281.70
  4. Step 4: Simplify right side
    84,524.10x = 6,501,809,308.46
  5. Step 5: Solve for x
    x = 6,501,809,308.46/84,524.10
  6. Step 6: Final answer
    x = 76,922.55

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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.