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Finding the Fourth Proportional to 68,065.44, 101,879.72 and 36,396.40

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Solution

The fourth proportional to 68,065.44, 101,879.72 and 36,396.40 is: 54,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,065.44 : 101,879.72 = 36,396.40 : x
  2. Step 2: Convert to fraction form
    68,065.44/101,879.72 = 36,396.40/x
  3. Step 3: Cross multiply
    68,065.44x = 101,879.72 × 36,396.40
  4. Step 4: Simplify right side
    68,065.44x = 3,708,055,041.01
  5. Step 5: Solve for x
    x = 3,708,055,041.01/68,065.44
  6. Step 6: Final answer
    x = 54,477.79

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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.