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Finding the Fourth Proportional to 56,600.80, 84,847.20 and 21,052.60

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Solution

The fourth proportional to 56,600.80, 84,847.20 and 21,052.60 is: 31,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,600.80 : 84,847.20 = 21,052.60 : x
  2. Step 2: Convert to fraction form
    56,600.80/84,847.20 = 21,052.60/x
  3. Step 3: Cross multiply
    56,600.80x = 84,847.20 × 21,052.60
  4. Step 4: Simplify right side
    56,600.80x = 1,786,254,162.72
  5. Step 5: Solve for x
    x = 1,786,254,162.72/56,600.80
  6. Step 6: Final answer
    x = 31,558.81

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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.