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Finding the Fourth Proportional to 73,185.32, 109,814.88 and 28,843.85

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Solution

The fourth proportional to 73,185.32, 109,814.88 and 28,843.85 is: 43,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,185.32 : 109,814.88 = 28,843.85 : x
  2. Step 2: Convert to fraction form
    73,185.32/109,814.88 = 28,843.85/x
  3. Step 3: Cross multiply
    73,185.32x = 109,814.88 × 28,843.85
  4. Step 4: Simplify right side
    73,185.32x = 3,167,483,926.49
  5. Step 5: Solve for x
    x = 3,167,483,926.49/73,185.32
  6. Step 6: Final answer
    x = 43,280.32

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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.