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Finding the Fourth Proportional to 56,104.72, 84,153.78 and 21,041.44

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Solution

The fourth proportional to 56,104.72, 84,153.78 and 21,041.44 is: 31,560.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,104.72 : 84,153.78 = 21,041.44 : x
  2. Step 2: Convert to fraction form
    56,104.72/84,153.78 = 21,041.44/x
  3. Step 3: Cross multiply
    56,104.72x = 84,153.78 × 21,041.44
  4. Step 4: Simplify right side
    56,104.72x = 1,770,716,712.64
  5. Step 5: Solve for x
    x = 1,770,716,712.64/56,104.72
  6. Step 6: Final answer
    x = 31,560.92

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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.