Home / 81,850.23-122,739.57-41,298.81

Finding the Fourth Proportional to 81,850.23, 122,739.57 and 41,298.81

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Solution

The fourth proportional to 81,850.23, 122,739.57 and 41,298.81 is: 61,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,850.23 : 122,739.57 = 41,298.81 : x
  2. Step 2: Convert to fraction form
    81,850.23/122,739.57 = 41,298.81/x
  3. Step 3: Cross multiply
    81,850.23x = 122,739.57 × 41,298.81
  4. Step 4: Simplify right side
    81,850.23x = 5,068,998,180.91
  5. Step 5: Solve for x
    x = 5,068,998,180.91/81,850.23
  6. Step 6: Final answer
    x = 61,930.16

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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.