Home / 75,157.20-103,716.72-41,623.20

Finding the Fourth Proportional to 75,157.20, 103,716.72 and 41,623.20

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Solution

The fourth proportional to 75,157.20, 103,716.72 and 41,623.20 is: 57,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.20 : 103,716.72 = 41,623.20 : x
  2. Step 2: Convert to fraction form
    75,157.20/103,716.72 = 41,623.20/x
  3. Step 3: Cross multiply
    75,157.20x = 103,716.72 × 41,623.20
  4. Step 4: Simplify right side
    75,157.20x = 4,317,021,779.90
  5. Step 5: Solve for x
    x = 4,317,021,779.90/75,157.20
  6. Step 6: Final answer
    x = 57,439.90

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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.