Home / 82,778.40-124,122.24-32,807.88

Finding the Fourth Proportional to 82,778.40, 124,122.24 and 32,807.88

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Solution

The fourth proportional to 82,778.40, 124,122.24 and 32,807.88 is: 49,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,778.40 : 124,122.24 = 32,807.88 : x
  2. Step 2: Convert to fraction form
    82,778.40/124,122.24 = 32,807.88/x
  3. Step 3: Cross multiply
    82,778.40x = 124,122.24 × 32,807.88
  4. Step 4: Simplify right side
    82,778.40x = 4,072,187,555.25
  5. Step 5: Solve for x
    x = 4,072,187,555.25/82,778.40
  6. Step 6: Final answer
    x = 49,193.84

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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.