Home / 52,780.11-72,836.57-28,906.77

Finding the Fourth Proportional to 52,780.11, 72,836.57 and 28,906.77

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Solution

The fourth proportional to 52,780.11, 72,836.57 and 28,906.77 is: 39,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,780.11 : 72,836.57 = 28,906.77 : x
  2. Step 2: Convert to fraction form
    52,780.11/72,836.57 = 28,906.77/x
  3. Step 3: Cross multiply
    52,780.11x = 72,836.57 × 28,906.77
  4. Step 4: Simplify right side
    52,780.11x = 2,105,470,321.98
  5. Step 5: Solve for x
    x = 2,105,470,321.98/52,780.11
  6. Step 6: Final answer
    x = 39,891.36

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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.