Home / 81,761.32-122,639.55-22,600.54

Finding the Fourth Proportional to 81,761.32, 122,639.55 and 22,600.54

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Solution

The fourth proportional to 81,761.32, 122,639.55 and 22,600.54 is: 33,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,761.32 : 122,639.55 = 22,600.54 : x
  2. Step 2: Convert to fraction form
    81,761.32/122,639.55 = 22,600.54/x
  3. Step 3: Cross multiply
    81,761.32x = 122,639.55 × 22,600.54
  4. Step 4: Simplify right side
    81,761.32x = 2,771,720,055.36
  5. Step 5: Solve for x
    x = 2,771,720,055.36/81,761.32
  6. Step 6: Final answer
    x = 33,900.14

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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.