Home / 81,505.72-112,374.54-58,249.95

Finding the Fourth Proportional to 81,505.72, 112,374.54 and 58,249.95

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Solution

The fourth proportional to 81,505.72, 112,374.54 and 58,249.95 is: 80,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505.72 : 112,374.54 = 58,249.95 : x
  2. Step 2: Convert to fraction form
    81,505.72/112,374.54 = 58,249.95/x
  3. Step 3: Cross multiply
    81,505.72x = 112,374.54 × 58,249.95
  4. Step 4: Simplify right side
    81,505.72x = 6,545,811,336.27
  5. Step 5: Solve for x
    x = 6,545,811,336.27/81,505.72
  6. Step 6: Final answer
    x = 80,311.07

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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.