Home / 71,918.55-107,914.80-55,159.22

Finding the Fourth Proportional to 71,918.55, 107,914.80 and 55,159.22

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Solution

The fourth proportional to 71,918.55, 107,914.80 and 55,159.22 is: 82,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,918.55 : 107,914.80 = 55,159.22 : x
  2. Step 2: Convert to fraction form
    71,918.55/107,914.80 = 55,159.22/x
  3. Step 3: Cross multiply
    71,918.55x = 107,914.80 × 55,159.22
  4. Step 4: Simplify right side
    71,918.55x = 5,952,496,194.46
  5. Step 5: Solve for x
    x = 5,952,496,194.46/71,918.55
  6. Step 6: Final answer
    x = 82,767.19

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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.