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Finding the Fourth Proportional to 72,244.72, 108,378.65 and 22,313.08

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Solution

The fourth proportional to 72,244.72, 108,378.65 and 22,313.08 is: 33,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,244.72 : 108,378.65 = 22,313.08 : x
  2. Step 2: Convert to fraction form
    72,244.72/108,378.65 = 22,313.08/x
  3. Step 3: Cross multiply
    72,244.72x = 108,378.65 × 22,313.08
  4. Step 4: Simplify right side
    72,244.72x = 2,418,261,487.74
  5. Step 5: Solve for x
    x = 2,418,261,487.74/72,244.72
  6. Step 6: Final answer
    x = 33,473.19

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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.