Home / 82,400.07-123,611.95-25,478.41

Finding the Fourth Proportional to 82,400.07, 123,611.95 and 25,478.41

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Solution

The fourth proportional to 82,400.07, 123,611.95 and 25,478.41 is: 38,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,400.07 : 123,611.95 = 25,478.41 : x
  2. Step 2: Convert to fraction form
    82,400.07/123,611.95 = 25,478.41/x
  3. Step 3: Cross multiply
    82,400.07x = 123,611.95 × 25,478.41
  4. Step 4: Simplify right side
    82,400.07x = 3,149,435,815.61
  5. Step 5: Solve for x
    x = 3,149,435,815.61/82,400.07
  6. Step 6: Final answer
    x = 38,221.28

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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.