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Finding the Fourth Proportional to 72,039.15, 108,074.80 and 22,124.29

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Solution

The fourth proportional to 72,039.15, 108,074.80 and 22,124.29 is: 33,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,039.15 : 108,074.80 = 22,124.29 : x
  2. Step 2: Convert to fraction form
    72,039.15/108,074.80 = 22,124.29/x
  3. Step 3: Cross multiply
    72,039.15x = 108,074.80 × 22,124.29
  4. Step 4: Simplify right side
    72,039.15x = 2,391,077,891.39
  5. Step 5: Solve for x
    x = 2,391,077,891.39/72,039.15
  6. Step 6: Final answer
    x = 33,191.37

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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.