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Finding the Fourth Proportional to 81,885.80, 122,814.96 and 22,727.48

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Solution

The fourth proportional to 81,885.80, 122,814.96 and 22,727.48 is: 34,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,885.80 : 122,814.96 = 22,727.48 : x
  2. Step 2: Convert to fraction form
    81,885.80/122,814.96 = 22,727.48/x
  3. Step 3: Cross multiply
    81,885.80x = 122,814.96 × 22,727.48
  4. Step 4: Simplify right side
    81,885.80x = 2,791,274,547.10
  5. Step 5: Solve for x
    x = 2,791,274,547.10/81,885.80
  6. Step 6: Final answer
    x = 34,087.41

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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.