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Finding the Fourth Proportional to 56,285.44, 84,381.44 and 21,205.76

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Solution

The fourth proportional to 56,285.44, 84,381.44 and 21,205.76 is: 31,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.44 : 84,381.44 = 21,205.76 : x
  2. Step 2: Convert to fraction form
    56,285.44/84,381.44 = 21,205.76/x
  3. Step 3: Cross multiply
    56,285.44x = 84,381.44 × 21,205.76
  4. Step 4: Simplify right side
    56,285.44x = 1,789,372,565.09
  5. Step 5: Solve for x
    x = 1,789,372,565.09/56,285.44
  6. Step 6: Final answer
    x = 31,791.04

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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.