Home / 77,474.15-116,195.92-21,299.77

Finding the Fourth Proportional to 77,474.15, 116,195.92 and 21,299.77

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Solution

The fourth proportional to 77,474.15, 116,195.92 and 21,299.77 is: 31,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,474.15 : 116,195.92 = 21,299.77 : x
  2. Step 2: Convert to fraction form
    77,474.15/116,195.92 = 21,299.77/x
  3. Step 3: Cross multiply
    77,474.15x = 116,195.92 × 21,299.77
  4. Step 4: Simplify right side
    77,474.15x = 2,474,946,370.94
  5. Step 5: Solve for x
    x = 2,474,946,370.94/77,474.15
  6. Step 6: Final answer
    x = 31,945.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.