Home / 67,064.74-100,612.68-19,677.90

Finding the Fourth Proportional to 67,064.74, 100,612.68 and 19,677.90

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Solution

The fourth proportional to 67,064.74, 100,612.68 and 19,677.90 is: 29,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,064.74 : 100,612.68 = 19,677.90 : x
  2. Step 2: Convert to fraction form
    67,064.74/100,612.68 = 19,677.90/x
  3. Step 3: Cross multiply
    67,064.74x = 100,612.68 × 19,677.90
  4. Step 4: Simplify right side
    67,064.74x = 1,979,846,255.77
  5. Step 5: Solve for x
    x = 1,979,846,255.77/67,064.74
  6. Step 6: Final answer
    x = 29,521.42

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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.