Home / 75,336.32-112,994.88-19,936.64

Finding the Fourth Proportional to 75,336.32, 112,994.88 and 19,936.64

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Solution

The fourth proportional to 75,336.32, 112,994.88 and 19,936.64 is: 29,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,336.32 : 112,994.88 = 19,936.64 : x
  2. Step 2: Convert to fraction form
    75,336.32/112,994.88 = 19,936.64/x
  3. Step 3: Cross multiply
    75,336.32x = 112,994.88 × 19,936.64
  4. Step 4: Simplify right side
    75,336.32x = 2,252,738,244.40
  5. Step 5: Solve for x
    x = 2,252,738,244.40/75,336.32
  6. Step 6: Final answer
    x = 29,902.42

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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.