Home / 86,644.09-129,939.67-36,723.25

Finding the Fourth Proportional to 86,644.09, 129,939.67 and 36,723.25

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Solution

The fourth proportional to 86,644.09, 129,939.67 and 36,723.25 is: 55,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,644.09 : 129,939.67 = 36,723.25 : x
  2. Step 2: Convert to fraction form
    86,644.09/129,939.67 = 36,723.25/x
  3. Step 3: Cross multiply
    86,644.09x = 129,939.67 × 36,723.25
  4. Step 4: Simplify right side
    86,644.09x = 4,771,806,986.33
  5. Step 5: Solve for x
    x = 4,771,806,986.33/86,644.09
  6. Step 6: Final answer
    x = 55,073.66

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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.