Home / 72,394.42-108,497.05-40,372.21

Finding the Fourth Proportional to 72,394.42, 108,497.05 and 40,372.21

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Solution

The fourth proportional to 72,394.42, 108,497.05 and 40,372.21 is: 60,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,394.42 : 108,497.05 = 40,372.21 : x
  2. Step 2: Convert to fraction form
    72,394.42/108,497.05 = 40,372.21/x
  3. Step 3: Cross multiply
    72,394.42x = 108,497.05 × 40,372.21
  4. Step 4: Simplify right side
    72,394.42x = 4,380,265,771.35
  5. Step 5: Solve for x
    x = 4,380,265,771.35/72,394.42
  6. Step 6: Final answer
    x = 60,505.57

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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.