Home / 72,085.24-99,387.66-55,110.52

Finding the Fourth Proportional to 72,085.24, 99,387.66 and 55,110.52

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Solution

The fourth proportional to 72,085.24, 99,387.66 and 55,110.52 is: 75,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,085.24 : 99,387.66 = 55,110.52 : x
  2. Step 2: Convert to fraction form
    72,085.24/99,387.66 = 55,110.52/x
  3. Step 3: Cross multiply
    72,085.24x = 99,387.66 × 55,110.52
  4. Step 4: Simplify right side
    72,085.24x = 5,477,305,624.18
  5. Step 5: Solve for x
    x = 5,477,305,624.18/72,085.24
  6. Step 6: Final answer
    x = 75,983.73

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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.