Home / 51,144.06-76,726.53-21,561.90

Finding the Fourth Proportional to 51,144.06, 76,726.53 and 21,561.90

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Solution

The fourth proportional to 51,144.06, 76,726.53 and 21,561.90 is: 32,347.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,144.06 : 76,726.53 = 21,561.90 : x
  2. Step 2: Convert to fraction form
    51,144.06/76,726.53 = 21,561.90/x
  3. Step 3: Cross multiply
    51,144.06x = 76,726.53 × 21,561.90
  4. Step 4: Simplify right side
    51,144.06x = 1,654,369,767.21
  5. Step 5: Solve for x
    x = 1,654,369,767.21/51,144.06
  6. Step 6: Final answer
    x = 32,347.25

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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.