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Finding the Fourth Proportional to 77,279.90, 115,852.80 and 34,552.86

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Solution

The fourth proportional to 77,279.90, 115,852.80 and 34,552.86 is: 51,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279.90 : 115,852.80 = 34,552.86 : x
  2. Step 2: Convert to fraction form
    77,279.90/115,852.80 = 34,552.86/x
  3. Step 3: Cross multiply
    77,279.90x = 115,852.80 × 34,552.86
  4. Step 4: Simplify right side
    77,279.90x = 4,003,045,579.01
  5. Step 5: Solve for x
    x = 4,003,045,579.01/77,279.90
  6. Step 6: Final answer
    x = 51,799.31

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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.