Home / 75,963.96-113,932.80-20,547

Finding the Fourth Proportional to 75,963.96, 113,932.80 and 20,547

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Solution

The fourth proportional to 75,963.96, 113,932.80 and 20,547 is: 30,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,963.96 : 113,932.80 = 20,547 : x
  2. Step 2: Convert to fraction form
    75,963.96/113,932.80 = 20,547/x
  3. Step 3: Cross multiply
    75,963.96x = 113,932.80 × 20,547
  4. Step 4: Simplify right side
    75,963.96x = 2,340,977,241.60
  5. Step 5: Solve for x
    x = 2,340,977,241.60/75,963.96
  6. Step 6: Final answer
    x = 30,816.95

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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.