Home / 73,257.19-109,890.04-28,278.80

Finding the Fourth Proportional to 73,257.19, 109,890.04 and 28,278.80

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Solution

The fourth proportional to 73,257.19, 109,890.04 and 28,278.80 is: 42,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,257.19 : 109,890.04 = 28,278.80 : x
  2. Step 2: Convert to fraction form
    73,257.19/109,890.04 = 28,278.80/x
  3. Step 3: Cross multiply
    73,257.19x = 109,890.04 × 28,278.80
  4. Step 4: Simplify right side
    73,257.19x = 3,107,558,361.14
  5. Step 5: Solve for x
    x = 3,107,558,361.14/73,257.19
  6. Step 6: Final answer
    x = 42,419.84

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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.