Home / 81,317.20-122,014.68-63,821.20

Finding the Fourth Proportional to 81,317.20, 122,014.68 and 63,821.20

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Solution

The fourth proportional to 81,317.20, 122,014.68 and 63,821.20 is: 95,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,317.20 : 122,014.68 = 63,821.20 : x
  2. Step 2: Convert to fraction form
    81,317.20/122,014.68 = 63,821.20/x
  3. Step 3: Cross multiply
    81,317.20x = 122,014.68 × 63,821.20
  4. Step 4: Simplify right side
    81,317.20x = 7,787,123,295.22
  5. Step 5: Solve for x
    x = 7,787,123,295.22/81,317.20
  6. Step 6: Final answer
    x = 95,762.31

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1.5x scale

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.