Home / 52,092.68-78,138.45-12,649.83

Finding the Fourth Proportional to 52,092.68, 78,138.45 and 12,649.83

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Solution

The fourth proportional to 52,092.68, 78,138.45 and 12,649.83 is: 18,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,092.68 : 78,138.45 = 12,649.83 : x
  2. Step 2: Convert to fraction form
    52,092.68/78,138.45 = 12,649.83/x
  3. Step 3: Cross multiply
    52,092.68x = 78,138.45 × 12,649.83
  4. Step 4: Simplify right side
    52,092.68x = 988,438,045.71
  5. Step 5: Solve for x
    x = 988,438,045.71/52,092.68
  6. Step 6: Final answer
    x = 18,974.61

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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.