Home / 45,927.82-68,892.10-12,649.72

Finding the Fourth Proportional to 45,927.82, 68,892.10 and 12,649.72

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Solution

The fourth proportional to 45,927.82, 68,892.10 and 12,649.72 is: 18,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,927.82 : 68,892.10 = 12,649.72 : x
  2. Step 2: Convert to fraction form
    45,927.82/68,892.10 = 12,649.72/x
  3. Step 3: Cross multiply
    45,927.82x = 68,892.10 × 12,649.72
  4. Step 4: Simplify right side
    45,927.82x = 871,465,775.21
  5. Step 5: Solve for x
    x = 871,465,775.21/45,927.82
  6. Step 6: Final answer
    x = 18,974.68

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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.