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Finding the Fourth Proportional to 76,614.30, 114,708.15 and 39,093.30

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Solution

The fourth proportional to 76,614.30, 114,708.15 and 39,093.30 is: 58,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,614.30 : 114,708.15 = 39,093.30 : x
  2. Step 2: Convert to fraction form
    76,614.30/114,708.15 = 39,093.30/x
  3. Step 3: Cross multiply
    76,614.30x = 114,708.15 × 39,093.30
  4. Step 4: Simplify right side
    76,614.30x = 4,484,320,120.40
  5. Step 5: Solve for x
    x = 4,484,320,120.40/76,614.30
  6. Step 6: Final answer
    x = 58,531.11

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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.