Home / 87,733.05-120,929.40-68,578.98

Finding the Fourth Proportional to 87,733.05, 120,929.40 and 68,578.98

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Solution

The fourth proportional to 87,733.05, 120,929.40 and 68,578.98 is: 94,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,733.05 : 120,929.40 = 68,578.98 : x
  2. Step 2: Convert to fraction form
    87,733.05/120,929.40 = 68,578.98/x
  3. Step 3: Cross multiply
    87,733.05x = 120,929.40 × 68,578.98
  4. Step 4: Simplify right side
    87,733.05x = 8,293,214,904.01
  5. Step 5: Solve for x
    x = 8,293,214,904.01/87,733.05
  6. Step 6: Final answer
    x = 94,527.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.