Home / 54,781.16-82,165.26-21,525.80

Finding the Fourth Proportional to 54,781.16, 82,165.26 and 21,525.80

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Solution

The fourth proportional to 54,781.16, 82,165.26 and 21,525.80 is: 32,286.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.16 : 82,165.26 = 21,525.80 : x
  2. Step 2: Convert to fraction form
    54,781.16/82,165.26 = 21,525.80/x
  3. Step 3: Cross multiply
    54,781.16x = 82,165.26 × 21,525.80
  4. Step 4: Simplify right side
    54,781.16x = 1,768,672,953.71
  5. Step 5: Solve for x
    x = 1,768,672,953.71/54,781.16
  6. Step 6: Final answer
    x = 32,286.15

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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.