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Finding the Fourth Proportional to 56,052, 84,092.96 and 20,995.20

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Solution

The fourth proportional to 56,052, 84,092.96 and 20,995.20 is: 31,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,052 : 84,092.96 = 20,995.20 : x
  2. Step 2: Convert to fraction form
    56,052/84,092.96 = 20,995.20/x
  3. Step 3: Cross multiply
    56,052x = 84,092.96 × 20,995.20
  4. Step 4: Simplify right side
    56,052x = 1,765,548,513.79
  5. Step 5: Solve for x
    x = 1,765,548,513.79/56,052
  6. Step 6: Final answer
    x = 31,498.40

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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.