Home / 66,247.62-99,315.27-28,779.45

Finding the Fourth Proportional to 66,247.62, 99,315.27 and 28,779.45

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Solution

The fourth proportional to 66,247.62, 99,315.27 and 28,779.45 is: 43,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,247.62 : 99,315.27 = 28,779.45 : x
  2. Step 2: Convert to fraction form
    66,247.62/99,315.27 = 28,779.45/x
  3. Step 3: Cross multiply
    66,247.62x = 99,315.27 × 28,779.45
  4. Step 4: Simplify right side
    66,247.62x = 2,858,238,847.20
  5. Step 5: Solve for x
    x = 2,858,238,847.20/66,247.62
  6. Step 6: Final answer
    x = 43,144.78

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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.