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Finding the Fourth Proportional to 72,302.10, 108,449.10 and 22,381.80

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Solution

The fourth proportional to 72,302.10, 108,449.10 and 22,381.80 is: 33,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,302.10 : 108,449.10 = 22,381.80 : x
  2. Step 2: Convert to fraction form
    72,302.10/108,449.10 = 22,381.80/x
  3. Step 3: Cross multiply
    72,302.10x = 108,449.10 × 22,381.80
  4. Step 4: Simplify right side
    72,302.10x = 2,427,286,066.38
  5. Step 5: Solve for x
    x = 2,427,286,066.38/72,302.10
  6. Step 6: Final answer
    x = 33,571.45

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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.