Home / 74,243.82-102,455.34-40,251.72

Finding the Fourth Proportional to 74,243.82, 102,455.34 and 40,251.72

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Solution

The fourth proportional to 74,243.82, 102,455.34 and 40,251.72 is: 55,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,243.82 : 102,455.34 = 40,251.72 : x
  2. Step 2: Convert to fraction form
    74,243.82/102,455.34 = 40,251.72/x
  3. Step 3: Cross multiply
    74,243.82x = 102,455.34 × 40,251.72
  4. Step 4: Simplify right side
    74,243.82x = 4,124,003,658.18
  5. Step 5: Solve for x
    x = 4,124,003,658.18/74,243.82
  6. Step 6: Final answer
    x = 55,546.76

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1.5x scale

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.