Home / 78,932.94-108,895.20-58,285.89

Finding the Fourth Proportional to 78,932.94, 108,895.20 and 58,285.89

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Solution

The fourth proportional to 78,932.94, 108,895.20 and 58,285.89 is: 80,410.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,932.94 : 108,895.20 = 58,285.89 : x
  2. Step 2: Convert to fraction form
    78,932.94/108,895.20 = 58,285.89/x
  3. Step 3: Cross multiply
    78,932.94x = 108,895.20 × 58,285.89
  4. Step 4: Simplify right side
    78,932.94x = 6,347,053,648.73
  5. Step 5: Solve for x
    x = 6,347,053,648.73/78,932.94
  6. Step 6: Final answer
    x = 80,410.71

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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.