Home / 77,279.36-115,921.92-27,364.72

Finding the Fourth Proportional to 77,279.36, 115,921.92 and 27,364.72

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Solution

The fourth proportional to 77,279.36, 115,921.92 and 27,364.72 is: 41,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279.36 : 115,921.92 = 27,364.72 : x
  2. Step 2: Convert to fraction form
    77,279.36/115,921.92 = 27,364.72/x
  3. Step 3: Cross multiply
    77,279.36x = 115,921.92 × 27,364.72
  4. Step 4: Simplify right side
    77,279.36x = 3,172,170,882.66
  5. Step 5: Solve for x
    x = 3,172,170,882.66/77,279.36
  6. Step 6: Final answer
    x = 41,048.10

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1.5x scale

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.