Home / 72,013.38-108,096.21-40,450.43

Finding the Fourth Proportional to 72,013.38, 108,096.21 and 40,450.43

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Solution

The fourth proportional to 72,013.38, 108,096.21 and 40,450.43 is: 60,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,013.38 : 108,096.21 = 40,450.43 : x
  2. Step 2: Convert to fraction form
    72,013.38/108,096.21 = 40,450.43/x
  3. Step 3: Cross multiply
    72,013.38x = 108,096.21 × 40,450.43
  4. Step 4: Simplify right side
    72,013.38x = 4,372,537,635.39
  5. Step 5: Solve for x
    x = 4,372,537,635.39/72,013.38
  6. Step 6: Final answer
    x = 60,718.41

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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.