Home / 83,511.82-115,252.32-51,699.16

Finding the Fourth Proportional to 83,511.82, 115,252.32 and 51,699.16

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Solution

The fourth proportional to 83,511.82, 115,252.32 and 51,699.16 is: 71,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,511.82 : 115,252.32 = 51,699.16 : x
  2. Step 2: Convert to fraction form
    83,511.82/115,252.32 = 51,699.16/x
  3. Step 3: Cross multiply
    83,511.82x = 115,252.32 × 51,699.16
  4. Step 4: Simplify right side
    83,511.82x = 5,958,448,132.05
  5. Step 5: Solve for x
    x = 5,958,448,132.05/83,511.82
  6. Step 6: Final answer
    x = 71,348.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.