Home / 84,453.57-126,427.80-51,072.61

Finding the Fourth Proportional to 84,453.57, 126,427.80 and 51,072.61

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Solution

The fourth proportional to 84,453.57, 126,427.80 and 51,072.61 is: 76,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,453.57 : 126,427.80 = 51,072.61 : x
  2. Step 2: Convert to fraction form
    84,453.57/126,427.80 = 51,072.61/x
  3. Step 3: Cross multiply
    84,453.57x = 126,427.80 × 51,072.61
  4. Step 4: Simplify right side
    84,453.57x = 6,456,997,467.19
  5. Step 5: Solve for x
    x = 6,456,997,467.19/84,453.57
  6. Step 6: Final answer
    x = 76,456.18

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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.