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Finding the Fourth Proportional to 67,740.62, 101,581.52 and 36,143.63

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Solution

The fourth proportional to 67,740.62, 101,581.52 and 36,143.63 is: 54,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,740.62 : 101,581.52 = 36,143.63 : x
  2. Step 2: Convert to fraction form
    67,740.62/101,581.52 = 36,143.63/x
  3. Step 3: Cross multiply
    67,740.62x = 101,581.52 × 36,143.63
  4. Step 4: Simplify right side
    67,740.62x = 3,671,524,810.53
  5. Step 5: Solve for x
    x = 3,671,524,810.53/67,740.62
  6. Step 6: Final answer
    x = 54,199.75

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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.