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Finding the Fourth Proportional to 56,259.10, 84,396.84 and 20,737.42

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Solution

The fourth proportional to 56,259.10, 84,396.84 and 20,737.42 is: 31,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,259.10 : 84,396.84 = 20,737.42 : x
  2. Step 2: Convert to fraction form
    56,259.10/84,396.84 = 20,737.42/x
  3. Step 3: Cross multiply
    56,259.10x = 84,396.84 × 20,737.42
  4. Step 4: Simplify right side
    56,259.10x = 1,750,172,717.75
  5. Step 5: Solve for x
    x = 1,750,172,717.75/56,259.10
  6. Step 6: Final answer
    x = 31,109.15

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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.