Home / 81,025.40-121,580.76-41,582.48

Finding the Fourth Proportional to 81,025.40, 121,580.76 and 41,582.48

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Solution

The fourth proportional to 81,025.40, 121,580.76 and 41,582.48 is: 62,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,025.40 : 121,580.76 = 41,582.48 : x
  2. Step 2: Convert to fraction form
    81,025.40/121,580.76 = 41,582.48/x
  3. Step 3: Cross multiply
    81,025.40x = 121,580.76 × 41,582.48
  4. Step 4: Simplify right side
    81,025.40x = 5,055,629,521.08
  5. Step 5: Solve for x
    x = 5,055,629,521.08/81,025.40
  6. Step 6: Final answer
    x = 62,395.61

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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.