Home / 45,118.22-67,680.84-18,830.48

Finding the Fourth Proportional to 45,118.22, 67,680.84 and 18,830.48

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Solution

The fourth proportional to 45,118.22, 67,680.84 and 18,830.48 is: 28,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.22 : 67,680.84 = 18,830.48 : x
  2. Step 2: Convert to fraction form
    45,118.22/67,680.84 = 18,830.48/x
  3. Step 3: Cross multiply
    45,118.22x = 67,680.84 × 18,830.48
  4. Step 4: Simplify right side
    45,118.22x = 1,274,462,704.00
  5. Step 5: Solve for x
    x = 1,274,462,704.00/45,118.22
  6. Step 6: Final answer
    x = 28,247.18

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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.