Home / 56,102.28-84,131.52-21,022.80

Finding the Fourth Proportional to 56,102.28, 84,131.52 and 21,022.80

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Solution

The fourth proportional to 56,102.28, 84,131.52 and 21,022.80 is: 31,525.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,102.28 : 84,131.52 = 21,022.80 : x
  2. Step 2: Convert to fraction form
    56,102.28/84,131.52 = 21,022.80/x
  3. Step 3: Cross multiply
    56,102.28x = 84,131.52 × 21,022.80
  4. Step 4: Simplify right side
    56,102.28x = 1,768,680,118.66
  5. Step 5: Solve for x
    x = 1,768,680,118.66/56,102.28
  6. Step 6: Final answer
    x = 31,525.99

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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.