Home / 71,816.94-99,108.06-39,986.52

Finding the Fourth Proportional to 71,816.94, 99,108.06 and 39,986.52

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Solution

The fourth proportional to 71,816.94, 99,108.06 and 39,986.52 is: 55,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,816.94 : 99,108.06 = 39,986.52 : x
  2. Step 2: Convert to fraction form
    71,816.94/99,108.06 = 39,986.52/x
  3. Step 3: Cross multiply
    71,816.94x = 99,108.06 × 39,986.52
  4. Step 4: Simplify right side
    71,816.94x = 3,962,986,423.35
  5. Step 5: Solve for x
    x = 3,962,986,423.35/71,816.94
  6. Step 6: Final answer
    x = 55,181.78

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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.