Home / 85,351.20-117,765.81-49,520.46

Finding the Fourth Proportional to 85,351.20, 117,765.81 and 49,520.46

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Solution

The fourth proportional to 85,351.20, 117,765.81 and 49,520.46 is: 68,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,351.20 : 117,765.81 = 49,520.46 : x
  2. Step 2: Convert to fraction form
    85,351.20/117,765.81 = 49,520.46/x
  3. Step 3: Cross multiply
    85,351.20x = 117,765.81 × 49,520.46
  4. Step 4: Simplify right side
    85,351.20x = 5,831,817,083.47
  5. Step 5: Solve for x
    x = 5,831,817,083.47/85,351.20
  6. Step 6: Final answer
    x = 68,327.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.