Home / 82,531.36-123,676.08-51,271.84

Finding the Fourth Proportional to 82,531.36, 123,676.08 and 51,271.84

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Solution

The fourth proportional to 82,531.36, 123,676.08 and 51,271.84 is: 76,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,531.36 : 123,676.08 = 51,271.84 : x
  2. Step 2: Convert to fraction form
    82,531.36/123,676.08 = 51,271.84/x
  3. Step 3: Cross multiply
    82,531.36x = 123,676.08 × 51,271.84
  4. Step 4: Simplify right side
    82,531.36x = 6,341,100,185.59
  5. Step 5: Solve for x
    x = 6,341,100,185.59/82,531.36
  6. Step 6: Final answer
    x = 76,832.61

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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.