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Finding the Fourth Proportional to 77,539.86, 116,309.76 and 22,135.86

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Solution

The fourth proportional to 77,539.86, 116,309.76 and 22,135.86 is: 33,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,539.86 : 116,309.76 = 22,135.86 : x
  2. Step 2: Convert to fraction form
    77,539.86/116,309.76 = 22,135.86/x
  3. Step 3: Cross multiply
    77,539.86x = 116,309.76 × 22,135.86
  4. Step 4: Simplify right side
    77,539.86x = 2,574,616,563.99
  5. Step 5: Solve for x
    x = 2,574,616,563.99/77,539.86
  6. Step 6: Final answer
    x = 33,203.78

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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.