Home / 82,310.40-123,465.60-29,721.60

Finding the Fourth Proportional to 82,310.40, 123,465.60 and 29,721.60

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Solution

The fourth proportional to 82,310.40, 123,465.60 and 29,721.60 is: 44,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,310.40 : 123,465.60 = 29,721.60 : x
  2. Step 2: Convert to fraction form
    82,310.40/123,465.60 = 29,721.60/x
  3. Step 3: Cross multiply
    82,310.40x = 123,465.60 × 29,721.60
  4. Step 4: Simplify right side
    82,310.40x = 3,669,595,176.96
  5. Step 5: Solve for x
    x = 3,669,595,176.96/82,310.40
  6. Step 6: Final answer
    x = 44,582.40

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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.