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Finding the Fourth Proportional to 77,367.25, 116,102.72 and 28,119.25

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Solution

The fourth proportional to 77,367.25, 116,102.72 and 28,119.25 is: 42,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,367.25 : 116,102.72 = 28,119.25 : x
  2. Step 2: Convert to fraction form
    77,367.25/116,102.72 = 28,119.25/x
  3. Step 3: Cross multiply
    77,367.25x = 116,102.72 × 28,119.25
  4. Step 4: Simplify right side
    77,367.25x = 3,264,721,409.36
  5. Step 5: Solve for x
    x = 3,264,721,409.36/77,367.25
  6. Step 6: Final answer
    x = 42,197.72

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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.