Home / 82,236.36-123,341.01-28,915.80

Finding the Fourth Proportional to 82,236.36, 123,341.01 and 28,915.80

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Solution

The fourth proportional to 82,236.36, 123,341.01 and 28,915.80 is: 43,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,236.36 : 123,341.01 = 28,915.80 : x
  2. Step 2: Convert to fraction form
    82,236.36/123,341.01 = 28,915.80/x
  3. Step 3: Cross multiply
    82,236.36x = 123,341.01 × 28,915.80
  4. Step 4: Simplify right side
    82,236.36x = 3,566,503,976.96
  5. Step 5: Solve for x
    x = 3,566,503,976.96/82,236.36
  6. Step 6: Final answer
    x = 43,368.94

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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.