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Finding the Fourth Proportional to 79,755.96, 119,707.92 and 40,341

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Solution

The fourth proportional to 79,755.96, 119,707.92 and 40,341 is: 60,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,755.96 : 119,707.92 = 40,341 : x
  2. Step 2: Convert to fraction form
    79,755.96/119,707.92 = 40,341/x
  3. Step 3: Cross multiply
    79,755.96x = 119,707.92 × 40,341
  4. Step 4: Simplify right side
    79,755.96x = 4,829,137,200.72
  5. Step 5: Solve for x
    x = 4,829,137,200.72/79,755.96
  6. Step 6: Final answer
    x = 60,548.92

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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.