Home / 77,106.76-115,647.27-27,175.12

Finding the Fourth Proportional to 77,106.76, 115,647.27 and 27,175.12

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Solution

The fourth proportional to 77,106.76, 115,647.27 and 27,175.12 is: 40,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,106.76 : 115,647.27 = 27,175.12 : x
  2. Step 2: Convert to fraction form
    77,106.76/115,647.27 = 27,175.12/x
  3. Step 3: Cross multiply
    77,106.76x = 115,647.27 × 27,175.12
  4. Step 4: Simplify right side
    77,106.76x = 3,142,728,439.92
  5. Step 5: Solve for x
    x = 3,142,728,439.92/77,106.76
  6. Step 6: Final answer
    x = 40,758.14

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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.