Home / 42,795.78-64,193.82-11,631.02

Finding the Fourth Proportional to 42,795.78, 64,193.82 and 11,631.02

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Solution

The fourth proportional to 42,795.78, 64,193.82 and 11,631.02 is: 17,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,795.78 : 64,193.82 = 11,631.02 : x
  2. Step 2: Convert to fraction form
    42,795.78/64,193.82 = 11,631.02/x
  3. Step 3: Cross multiply
    42,795.78x = 64,193.82 × 11,631.02
  4. Step 4: Simplify right side
    42,795.78x = 746,639,604.30
  5. Step 5: Solve for x
    x = 746,639,604.30/42,795.78
  6. Step 6: Final answer
    x = 17,446.57

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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.