Home / 66,168.78-99,197.35-28,700.65

Finding the Fourth Proportional to 66,168.78, 99,197.35 and 28,700.65

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Solution

The fourth proportional to 66,168.78, 99,197.35 and 28,700.65 is: 43,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,168.78 : 99,197.35 = 28,700.65 : x
  2. Step 2: Convert to fraction form
    66,168.78/99,197.35 = 28,700.65/x
  3. Step 3: Cross multiply
    66,168.78x = 99,197.35 × 28,700.65
  4. Step 4: Simplify right side
    66,168.78x = 2,847,028,078.98
  5. Step 5: Solve for x
    x = 2,847,028,078.98/66,168.78
  6. Step 6: Final answer
    x = 43,026.76

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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.