Home / 81,608.12-122,415.24-22,443.92

Finding the Fourth Proportional to 81,608.12, 122,415.24 and 22,443.92

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Solution

The fourth proportional to 81,608.12, 122,415.24 and 22,443.92 is: 33,666.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,608.12 : 122,415.24 = 22,443.92 : x
  2. Step 2: Convert to fraction form
    81,608.12/122,415.24 = 22,443.92/x
  3. Step 3: Cross multiply
    81,608.12x = 122,415.24 × 22,443.92
  4. Step 4: Simplify right side
    81,608.12x = 2,747,477,853.34
  5. Step 5: Solve for x
    x = 2,747,477,853.34/81,608.12
  6. Step 6: Final answer
    x = 33,666.72

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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.