Home / 74,760.09-103,163.72-42,059.43

Finding the Fourth Proportional to 74,760.09, 103,163.72 and 42,059.43

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Solution

The fourth proportional to 74,760.09, 103,163.72 and 42,059.43 is: 58,039.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,760.09 : 103,163.72 = 42,059.43 : x
  2. Step 2: Convert to fraction form
    74,760.09/103,163.72 = 42,059.43/x
  3. Step 3: Cross multiply
    74,760.09x = 103,163.72 × 42,059.43
  4. Step 4: Simplify right side
    74,760.09x = 4,339,007,049.58
  5. Step 5: Solve for x
    x = 4,339,007,049.58/74,760.09
  6. Step 6: Final answer
    x = 58,039.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.