Home / 56,914.80-85,372.20-21,855.30

Finding the Fourth Proportional to 56,914.80, 85,372.20 and 21,855.30

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Solution

The fourth proportional to 56,914.80, 85,372.20 and 21,855.30 is: 32,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,914.80 : 85,372.20 = 21,855.30 : x
  2. Step 2: Convert to fraction form
    56,914.80/85,372.20 = 21,855.30/x
  3. Step 3: Cross multiply
    56,914.80x = 85,372.20 × 21,855.30
  4. Step 4: Simplify right side
    56,914.80x = 1,865,835,042.66
  5. Step 5: Solve for x
    x = 1,865,835,042.66/56,914.80
  6. Step 6: Final answer
    x = 32,782.95

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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.