Home / 86,443.22-129,678.66-36,523.79

Finding the Fourth Proportional to 86,443.22, 129,678.66 and 36,523.79

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Solution

The fourth proportional to 86,443.22, 129,678.66 and 36,523.79 is: 54,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,443.22 : 129,678.66 = 36,523.79 : x
  2. Step 2: Convert to fraction form
    86,443.22/129,678.66 = 36,523.79/x
  3. Step 3: Cross multiply
    86,443.22x = 129,678.66 × 36,523.79
  4. Step 4: Simplify right side
    86,443.22x = 4,736,356,469.52
  5. Step 5: Solve for x
    x = 4,736,356,469.52/86,443.22
  6. Step 6: Final answer
    x = 54,791.54

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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.