Home / 43,419.08-65,145.90-18,464.60

Finding the Fourth Proportional to 43,419.08, 65,145.90 and 18,464.60

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Solution

The fourth proportional to 43,419.08, 65,145.90 and 18,464.60 is: 27,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419.08 : 65,145.90 = 18,464.60 : x
  2. Step 2: Convert to fraction form
    43,419.08/65,145.90 = 18,464.60/x
  3. Step 3: Cross multiply
    43,419.08x = 65,145.90 × 18,464.60
  4. Step 4: Simplify right side
    43,419.08x = 1,202,892,985.14
  5. Step 5: Solve for x
    x = 1,202,892,985.14/43,419.08
  6. Step 6: Final answer
    x = 27,704.25

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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.