Home / 45,471.24-68,207.31-28,379.34

Finding the Fourth Proportional to 45,471.24, 68,207.31 and 28,379.34

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Solution

The fourth proportional to 45,471.24, 68,207.31 and 28,379.34 is: 42,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,471.24 : 68,207.31 = 28,379.34 : x
  2. Step 2: Convert to fraction form
    45,471.24/68,207.31 = 28,379.34/x
  3. Step 3: Cross multiply
    45,471.24x = 68,207.31 × 28,379.34
  4. Step 4: Simplify right side
    45,471.24x = 1,935,678,440.98
  5. Step 5: Solve for x
    x = 1,935,678,440.98/45,471.24
  6. Step 6: Final answer
    x = 42,569.29

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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.