Home / 81,520.79-122,268.11-22,342.73

Finding the Fourth Proportional to 81,520.79, 122,268.11 and 22,342.73

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Solution

The fourth proportional to 81,520.79, 122,268.11 and 22,342.73 is: 33,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,520.79 : 122,268.11 = 22,342.73 : x
  2. Step 2: Convert to fraction form
    81,520.79/122,268.11 = 22,342.73/x
  3. Step 3: Cross multiply
    81,520.79x = 122,268.11 × 22,342.73
  4. Step 4: Simplify right side
    81,520.79x = 2,731,802,646.29
  5. Step 5: Solve for x
    x = 2,731,802,646.29/81,520.79
  6. Step 6: Final answer
    x = 33,510.50

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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.