Home / 51,122.06-76,693.46-21,539.90

Finding the Fourth Proportional to 51,122.06, 76,693.46 and 21,539.90

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Solution

The fourth proportional to 51,122.06, 76,693.46 and 21,539.90 is: 32,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,122.06 : 76,693.46 = 21,539.90 : x
  2. Step 2: Convert to fraction form
    51,122.06/76,693.46 = 21,539.90/x
  3. Step 3: Cross multiply
    51,122.06x = 76,693.46 × 21,539.90
  4. Step 4: Simplify right side
    51,122.06x = 1,651,969,459.05
  5. Step 5: Solve for x
    x = 1,651,969,459.05/51,122.06
  6. Step 6: Final answer
    x = 32,314.22

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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.