Home / 72,531.20-100,093.82-40,699.42

Finding the Fourth Proportional to 72,531.20, 100,093.82 and 40,699.42

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Solution

The fourth proportional to 72,531.20, 100,093.82 and 40,699.42 is: 56,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,531.20 : 100,093.82 = 40,699.42 : x
  2. Step 2: Convert to fraction form
    72,531.20/100,093.82 = 40,699.42/x
  3. Step 3: Cross multiply
    72,531.20x = 100,093.82 × 40,699.42
  4. Step 4: Simplify right side
    72,531.20x = 4,073,759,965.85
  5. Step 5: Solve for x
    x = 4,073,759,965.85/72,531.20
  6. Step 6: Final answer
    x = 56,165.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.