Home / 77,206.28-115,788.56-27,279.77

Finding the Fourth Proportional to 77,206.28, 115,788.56 and 27,279.77

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Solution

The fourth proportional to 77,206.28, 115,788.56 and 27,279.77 is: 40,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,206.28 : 115,788.56 = 27,279.77 : x
  2. Step 2: Convert to fraction form
    77,206.28/115,788.56 = 27,279.77/x
  3. Step 3: Cross multiply
    77,206.28x = 115,788.56 × 27,279.77
  4. Step 4: Simplify right side
    77,206.28x = 3,158,684,570.09
  5. Step 5: Solve for x
    x = 3,158,684,570.09/77,206.28
  6. Step 6: Final answer
    x = 40,912.28

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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.