Home / 77,182.08-115,786.89-27,291.15

Finding the Fourth Proportional to 77,182.08, 115,786.89 and 27,291.15

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Solution

The fourth proportional to 77,182.08, 115,786.89 and 27,291.15 is: 40,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,182.08 : 115,786.89 = 27,291.15 : x
  2. Step 2: Convert to fraction form
    77,182.08/115,786.89 = 27,291.15/x
  3. Step 3: Cross multiply
    77,182.08x = 115,786.89 × 27,291.15
  4. Step 4: Simplify right side
    77,182.08x = 3,159,957,383.02
  5. Step 5: Solve for x
    x = 3,159,957,383.02/77,182.08
  6. Step 6: Final answer
    x = 40,941.59

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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.