Home / 81,958.02-122,859.27-29,340.42

Finding the Fourth Proportional to 81,958.02, 122,859.27 and 29,340.42

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Solution

The fourth proportional to 81,958.02, 122,859.27 and 29,340.42 is: 43,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,958.02 : 122,859.27 = 29,340.42 : x
  2. Step 2: Convert to fraction form
    81,958.02/122,859.27 = 29,340.42/x
  3. Step 3: Cross multiply
    81,958.02x = 122,859.27 × 29,340.42
  4. Step 4: Simplify right side
    81,958.02x = 3,604,742,582.69
  5. Step 5: Solve for x
    x = 3,604,742,582.69/81,958.02
  6. Step 6: Final answer
    x = 43,982.79

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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.