Home / 67,472.07-101,208.11-20,718.87

Finding the Fourth Proportional to 67,472.07, 101,208.11 and 20,718.87

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Solution

The fourth proportional to 67,472.07, 101,208.11 and 20,718.87 is: 31,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,472.07 : 101,208.11 = 20,718.87 : x
  2. Step 2: Convert to fraction form
    67,472.07/101,208.11 = 20,718.87/x
  3. Step 3: Cross multiply
    67,472.07x = 101,208.11 × 20,718.87
  4. Step 4: Simplify right side
    67,472.07x = 2,096,917,570.44
  5. Step 5: Solve for x
    x = 2,096,917,570.44/67,472.07
  6. Step 6: Final answer
    x = 31,078.31

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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.