Home / 72,936.80-100,399.92-62,898.56

Finding the Fourth Proportional to 72,936.80, 100,399.92 and 62,898.56

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Solution

The fourth proportional to 72,936.80, 100,399.92 and 62,898.56 is: 86,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,936.80 : 100,399.92 = 62,898.56 : x
  2. Step 2: Convert to fraction form
    72,936.80/100,399.92 = 62,898.56/x
  3. Step 3: Cross multiply
    72,936.80x = 100,399.92 × 62,898.56
  4. Step 4: Simplify right side
    72,936.80x = 6,315,010,392.12
  5. Step 5: Solve for x
    x = 6,315,010,392.12/72,936.80
  6. Step 6: Final answer
    x = 86,581.95

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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.