Home / 74,914.24-112,383.52-28,170.88

Finding the Fourth Proportional to 74,914.24, 112,383.52 and 28,170.88

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Solution

The fourth proportional to 74,914.24, 112,383.52 and 28,170.88 is: 42,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,914.24 : 112,383.52 = 28,170.88 : x
  2. Step 2: Convert to fraction form
    74,914.24/112,383.52 = 28,170.88/x
  3. Step 3: Cross multiply
    74,914.24x = 112,383.52 × 28,170.88
  4. Step 4: Simplify right side
    74,914.24x = 3,165,942,655.90
  5. Step 5: Solve for x
    x = 3,165,942,655.90/74,914.24
  6. Step 6: Final answer
    x = 42,260.89

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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.