Home / 51,287.23-76,938.94-21,705.22

Finding the Fourth Proportional to 51,287.23, 76,938.94 and 21,705.22

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Solution

The fourth proportional to 51,287.23, 76,938.94 and 21,705.22 is: 32,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,287.23 : 76,938.94 = 21,705.22 : x
  2. Step 2: Convert to fraction form
    51,287.23/76,938.94 = 21,705.22/x
  3. Step 3: Cross multiply
    51,287.23x = 76,938.94 × 21,705.22
  4. Step 4: Simplify right side
    51,287.23x = 1,669,976,234.57
  5. Step 5: Solve for x
    x = 1,669,976,234.57/51,287.23
  6. Step 6: Final answer
    x = 32,561.25

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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.