Home / 51,109.56-76,647.60-21,521.88

Finding the Fourth Proportional to 51,109.56, 76,647.60 and 21,521.88

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Solution

The fourth proportional to 51,109.56, 76,647.60 and 21,521.88 is: 32,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.56 : 76,647.60 = 21,521.88 : x
  2. Step 2: Convert to fraction form
    51,109.56/76,647.60 = 21,521.88/x
  3. Step 3: Cross multiply
    51,109.56x = 76,647.60 × 21,521.88
  4. Step 4: Simplify right side
    51,109.56x = 1,649,600,449.49
  5. Step 5: Solve for x
    x = 1,649,600,449.49/51,109.56
  6. Step 6: Final answer
    x = 32,275.77

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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.