Home / 72,538.90-108,803.21-25,142.49

Finding the Fourth Proportional to 72,538.90, 108,803.21 and 25,142.49

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Solution

The fourth proportional to 72,538.90, 108,803.21 and 25,142.49 is: 37,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,538.90 : 108,803.21 = 25,142.49 : x
  2. Step 2: Convert to fraction form
    72,538.90/108,803.21 = 25,142.49/x
  3. Step 3: Cross multiply
    72,538.90x = 108,803.21 × 25,142.49
  4. Step 4: Simplify right side
    72,538.90x = 2,735,583,493.68
  5. Step 5: Solve for x
    x = 2,735,583,493.68/72,538.90
  6. Step 6: Final answer
    x = 37,711.95

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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.