Home / 84,427.20-116,732.16-73,929.60

Finding the Fourth Proportional to 84,427.20, 116,732.16 and 73,929.60

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Solution

The fourth proportional to 84,427.20, 116,732.16 and 73,929.60 is: 102,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,427.20 : 116,732.16 = 73,929.60 : x
  2. Step 2: Convert to fraction form
    84,427.20/116,732.16 = 73,929.60/x
  3. Step 3: Cross multiply
    84,427.20x = 116,732.16 × 73,929.60
  4. Step 4: Simplify right side
    84,427.20x = 8,629,961,895.94
  5. Step 5: Solve for x
    x = 8,629,961,895.94/84,427.20
  6. Step 6: Final answer
    x = 102,217.79

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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.