Home / 83,588.88-125,382.87-20,409.33

Finding the Fourth Proportional to 83,588.88, 125,382.87 and 20,409.33

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Solution

The fourth proportional to 83,588.88, 125,382.87 and 20,409.33 is: 30,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,588.88 : 125,382.87 = 20,409.33 : x
  2. Step 2: Convert to fraction form
    83,588.88/125,382.87 = 20,409.33/x
  3. Step 3: Cross multiply
    83,588.88x = 125,382.87 × 20,409.33
  4. Step 4: Simplify right side
    83,588.88x = 2,558,980,370.18
  5. Step 5: Solve for x
    x = 2,558,980,370.18/83,588.88
  6. Step 6: Final answer
    x = 30,613.89

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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.