Home / 75,152.10-112,735.66-27,779.60

Finding the Fourth Proportional to 75,152.10, 112,735.66 and 27,779.60

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Solution

The fourth proportional to 75,152.10, 112,735.66 and 27,779.60 is: 41,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,152.10 : 112,735.66 = 27,779.60 : x
  2. Step 2: Convert to fraction form
    75,152.10/112,735.66 = 27,779.60/x
  3. Step 3: Cross multiply
    75,152.10x = 112,735.66 × 27,779.60
  4. Step 4: Simplify right side
    75,152.10x = 3,131,751,540.54
  5. Step 5: Solve for x
    x = 3,131,751,540.54/75,152.10
  6. Step 6: Final answer
    x = 41,672.18

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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.