Home / 81,792.96-122,689.46-25,633.06

Finding the Fourth Proportional to 81,792.96, 122,689.46 and 25,633.06

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Solution

The fourth proportional to 81,792.96, 122,689.46 and 25,633.06 is: 38,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,792.96 : 122,689.46 = 25,633.06 : x
  2. Step 2: Convert to fraction form
    81,792.96/122,689.46 = 25,633.06/x
  3. Step 3: Cross multiply
    81,792.96x = 122,689.46 × 25,633.06
  4. Step 4: Simplify right side
    81,792.96x = 3,144,906,289.55
  5. Step 5: Solve for x
    x = 3,144,906,289.55/81,792.96
  6. Step 6: Final answer
    x = 38,449.60

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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.