Home / 85,371.04-128,072.94-32,776.36

Finding the Fourth Proportional to 85,371.04, 128,072.94 and 32,776.36

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Solution

The fourth proportional to 85,371.04, 128,072.94 and 32,776.36 is: 49,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,371.04 : 128,072.94 = 32,776.36 : x
  2. Step 2: Convert to fraction form
    85,371.04/128,072.94 = 32,776.36/x
  3. Step 3: Cross multiply
    85,371.04x = 128,072.94 × 32,776.36
  4. Step 4: Simplify right side
    85,371.04x = 4,197,764,787.70
  5. Step 5: Solve for x
    x = 4,197,764,787.70/85,371.04
  6. Step 6: Final answer
    x = 49,170.83

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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.