Home / 83,427.88-115,131.78-45,699.64

Finding the Fourth Proportional to 83,427.88, 115,131.78 and 45,699.64

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Solution

The fourth proportional to 83,427.88, 115,131.78 and 45,699.64 is: 63,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.88 : 115,131.78 = 45,699.64 : x
  2. Step 2: Convert to fraction form
    83,427.88/115,131.78 = 45,699.64/x
  3. Step 3: Cross multiply
    83,427.88x = 115,131.78 × 45,699.64
  4. Step 4: Simplify right side
    83,427.88x = 5,261,480,898.56
  5. Step 5: Solve for x
    x = 5,261,480,898.56/83,427.88
  6. Step 6: Final answer
    x = 63,066.22

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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.