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Finding the Fourth Proportional to 72,041.15, 108,077.81 and 22,126.30

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Solution

The fourth proportional to 72,041.15, 108,077.81 and 22,126.30 is: 33,194.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.15 : 108,077.81 = 22,126.30 : x
  2. Step 2: Convert to fraction form
    72,041.15/108,077.81 = 22,126.30/x
  3. Step 3: Cross multiply
    72,041.15x = 108,077.81 × 22,126.30
  4. Step 4: Simplify right side
    72,041.15x = 2,391,361,396.38
  5. Step 5: Solve for x
    x = 2,391,361,396.38/72,041.15
  6. Step 6: Final answer
    x = 33,194.38

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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.