Home / 80,352.48-120,371.85-38,172.54

Finding the Fourth Proportional to 80,352.48, 120,371.85 and 38,172.54

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Solution

The fourth proportional to 80,352.48, 120,371.85 and 38,172.54 is: 57,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352.48 : 120,371.85 = 38,172.54 : x
  2. Step 2: Convert to fraction form
    80,352.48/120,371.85 = 38,172.54/x
  3. Step 3: Cross multiply
    80,352.48x = 120,371.85 × 38,172.54
  4. Step 4: Simplify right side
    80,352.48x = 4,594,899,259.00
  5. Step 5: Solve for x
    x = 4,594,899,259.00/80,352.48
  6. Step 6: Final answer
    x = 57,184.29

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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.