Home / 79,926.72-119,828.12-51,787.32

Finding the Fourth Proportional to 79,926.72, 119,828.12 and 51,787.32

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Solution

The fourth proportional to 79,926.72, 119,828.12 and 51,787.32 is: 77,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,926.72 : 119,828.12 = 51,787.32 : x
  2. Step 2: Convert to fraction form
    79,926.72/119,828.12 = 51,787.32/x
  3. Step 3: Cross multiply
    79,926.72x = 119,828.12 × 51,787.32
  4. Step 4: Simplify right side
    79,926.72x = 6,205,576,936.50
  5. Step 5: Solve for x
    x = 6,205,576,936.50/79,926.72
  6. Step 6: Final answer
    x = 77,640.83

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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.