Home / 75,241.28-112,845.72-30,825.20

Finding the Fourth Proportional to 75,241.28, 112,845.72 and 30,825.20

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Solution

The fourth proportional to 75,241.28, 112,845.72 and 30,825.20 is: 46,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,241.28 : 112,845.72 = 30,825.20 : x
  2. Step 2: Convert to fraction form
    75,241.28/112,845.72 = 30,825.20/x
  3. Step 3: Cross multiply
    75,241.28x = 112,845.72 × 30,825.20
  4. Step 4: Simplify right side
    75,241.28x = 3,478,491,888.14
  5. Step 5: Solve for x
    x = 3,478,491,888.14/75,241.28
  6. Step 6: Final answer
    x = 46,231.16

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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.