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Finding the Fourth Proportional to 67,999.35, 101,998.82 and 18,079.40

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Solution

The fourth proportional to 67,999.35, 101,998.82 and 18,079.40 is: 27,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.35 : 101,998.82 = 18,079.40 : x
  2. Step 2: Convert to fraction form
    67,999.35/101,998.82 = 18,079.40/x
  3. Step 3: Cross multiply
    67,999.35x = 101,998.82 × 18,079.40
  4. Step 4: Simplify right side
    67,999.35x = 1,844,077,715.66
  5. Step 5: Solve for x
    x = 1,844,077,715.66/67,999.35
  6. Step 6: Final answer
    x = 27,119.05

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1.5x scale

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.