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Finding the Fourth Proportional to 56,049, 84,073.29 and 18,611.88

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Solution

The fourth proportional to 56,049, 84,073.29 and 18,611.88 is: 27,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,049 : 84,073.29 = 18,611.88 : x
  2. Step 2: Convert to fraction form
    56,049/84,073.29 = 18,611.88/x
  3. Step 3: Cross multiply
    56,049x = 84,073.29 × 18,611.88
  4. Step 4: Simplify right side
    56,049x = 1,564,761,984.69
  5. Step 5: Solve for x
    x = 1,564,761,984.69/56,049
  6. Step 6: Final answer
    x = 27,917.75

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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.