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Finding the Fourth Proportional to 79,986.86, 120,002.17 and 35,000.04

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Solution

The fourth proportional to 79,986.86, 120,002.17 and 35,000.04 is: 52,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,986.86 : 120,002.17 = 35,000.04 : x
  2. Step 2: Convert to fraction form
    79,986.86/120,002.17 = 35,000.04/x
  3. Step 3: Cross multiply
    79,986.86x = 120,002.17 × 35,000.04
  4. Step 4: Simplify right side
    79,986.86x = 4,200,080,503.21
  5. Step 5: Solve for x
    x = 4,200,080,503.21/79,986.86
  6. Step 6: Final answer
    x = 52,509.63

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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.