Home / 84,031.39-115,961.79-45,791.26

Finding the Fourth Proportional to 84,031.39, 115,961.79 and 45,791.26

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Solution

The fourth proportional to 84,031.39, 115,961.79 and 45,791.26 is: 63,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,031.39 : 115,961.79 = 45,791.26 : x
  2. Step 2: Convert to fraction form
    84,031.39/115,961.79 = 45,791.26/x
  3. Step 3: Cross multiply
    84,031.39x = 115,961.79 × 45,791.26
  4. Step 4: Simplify right side
    84,031.39x = 5,310,036,475.96
  5. Step 5: Solve for x
    x = 5,310,036,475.96/84,031.39
  6. Step 6: Final answer
    x = 63,191.11

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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.