Home / 81,414.81-121,941.78-62,556.03

Finding the Fourth Proportional to 81,414.81, 121,941.78 and 62,556.03

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Solution

The fourth proportional to 81,414.81, 121,941.78 and 62,556.03 is: 93,695.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414.81 : 121,941.78 = 62,556.03 : x
  2. Step 2: Convert to fraction form
    81,414.81/121,941.78 = 62,556.03/x
  3. Step 3: Cross multiply
    81,414.81x = 121,941.78 × 62,556.03
  4. Step 4: Simplify right side
    81,414.81x = 7,628,193,647.93
  5. Step 5: Solve for x
    x = 7,628,193,647.93/81,414.81
  6. Step 6: Final answer
    x = 93,695.41

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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.