Home / 74,198.52-102,393.72-40,207.14

Finding the Fourth Proportional to 74,198.52, 102,393.72 and 40,207.14

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Solution

The fourth proportional to 74,198.52, 102,393.72 and 40,207.14 is: 55,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,198.52 : 102,393.72 = 40,207.14 : x
  2. Step 2: Convert to fraction form
    74,198.52/102,393.72 = 40,207.14/x
  3. Step 3: Cross multiply
    74,198.52x = 102,393.72 × 40,207.14
  4. Step 4: Simplify right side
    74,198.52x = 4,116,958,635.16
  5. Step 5: Solve for x
    x = 4,116,958,635.16/74,198.52
  6. Step 6: Final answer
    x = 55,485.72

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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.