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Finding the Fourth Proportional to 56,540.16, 84,787.02 and 21,003.84

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Solution

The fourth proportional to 56,540.16, 84,787.02 and 21,003.84 is: 31,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,540.16 : 84,787.02 = 21,003.84 : x
  2. Step 2: Convert to fraction form
    56,540.16/84,787.02 = 21,003.84/x
  3. Step 3: Cross multiply
    56,540.16x = 84,787.02 × 21,003.84
  4. Step 4: Simplify right side
    56,540.16x = 1,780,853,002.16
  5. Step 5: Solve for x
    x = 1,780,853,002.16/56,540.16
  6. Step 6: Final answer
    x = 31,497.13

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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.