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Finding the Fourth Proportional to 77,265.92, 115,880.67 and 21,092.67

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Solution

The fourth proportional to 77,265.92, 115,880.67 and 21,092.67 is: 31,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,265.92 : 115,880.67 = 21,092.67 : x
  2. Step 2: Convert to fraction form
    77,265.92/115,880.67 = 21,092.67/x
  3. Step 3: Cross multiply
    77,265.92x = 115,880.67 × 21,092.67
  4. Step 4: Simplify right side
    77,265.92x = 2,444,232,731.69
  5. Step 5: Solve for x
    x = 2,444,232,731.69/77,265.92
  6. Step 6: Final answer
    x = 31,634.04

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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.