Home / 72,142.26-108,252.08-30,051.42

Finding the Fourth Proportional to 72,142.26, 108,252.08 and 30,051.42

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Solution

The fourth proportional to 72,142.26, 108,252.08 and 30,051.42 is: 45,093.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,142.26 : 108,252.08 = 30,051.42 : x
  2. Step 2: Convert to fraction form
    72,142.26/108,252.08 = 30,051.42/x
  3. Step 3: Cross multiply
    72,142.26x = 108,252.08 × 30,051.42
  4. Step 4: Simplify right side
    72,142.26x = 3,253,128,571.70
  5. Step 5: Solve for x
    x = 3,253,128,571.70/72,142.26
  6. Step 6: Final answer
    x = 45,093.24

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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.