Home / 75,825.96-113,865.82-72,808.81

Finding the Fourth Proportional to 75,825.96, 113,865.82 and 72,808.81

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Solution

The fourth proportional to 75,825.96, 113,865.82 and 72,808.81 is: 109,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,825.96 : 113,865.82 = 72,808.81 : x
  2. Step 2: Convert to fraction form
    75,825.96/113,865.82 = 72,808.81/x
  3. Step 3: Cross multiply
    75,825.96x = 113,865.82 × 72,808.81
  4. Step 4: Simplify right side
    75,825.96x = 8,290,434,387.19
  5. Step 5: Solve for x
    x = 8,290,434,387.19/75,825.96
  6. Step 6: Final answer
    x = 109,335.05

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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.