Home / 80,975.11-111,745.82-45,164.20

Finding the Fourth Proportional to 80,975.11, 111,745.82 and 45,164.20

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Solution

The fourth proportional to 80,975.11, 111,745.82 and 45,164.20 is: 62,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,975.11 : 111,745.82 = 45,164.20 : x
  2. Step 2: Convert to fraction form
    80,975.11/111,745.82 = 45,164.20/x
  3. Step 3: Cross multiply
    80,975.11x = 111,745.82 × 45,164.20
  4. Step 4: Simplify right side
    80,975.11x = 5,046,909,779.09
  5. Step 5: Solve for x
    x = 5,046,909,779.09/80,975.11
  6. Step 6: Final answer
    x = 62,326.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.