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Finding the Fourth Proportional to 67,492.62, 101,238.93 and 20,108.43

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Solution

The fourth proportional to 67,492.62, 101,238.93 and 20,108.43 is: 30,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,492.62 : 101,238.93 = 20,108.43 : x
  2. Step 2: Convert to fraction form
    67,492.62/101,238.93 = 20,108.43/x
  3. Step 3: Cross multiply
    67,492.62x = 101,238.93 × 20,108.43
  4. Step 4: Simplify right side
    67,492.62x = 2,035,755,937.18
  5. Step 5: Solve for x
    x = 2,035,755,937.18/67,492.62
  6. Step 6: Final answer
    x = 30,162.65

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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.