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Finding the Fourth Proportional to 81,523.80, 122,272.61 and 22,345.74

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Solution

The fourth proportional to 81,523.80, 122,272.61 and 22,345.74 is: 33,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,523.80 : 122,272.61 = 22,345.74 : x
  2. Step 2: Convert to fraction form
    81,523.80/122,272.61 = 22,345.74/x
  3. Step 3: Cross multiply
    81,523.80x = 122,272.61 × 22,345.74
  4. Step 4: Simplify right side
    81,523.80x = 2,732,271,840.45
  5. Step 5: Solve for x
    x = 2,732,271,840.45/81,523.80
  6. Step 6: Final answer
    x = 33,515.02

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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.