Home / 75,625.44-113,438.16-20,220

Finding the Fourth Proportional to 75,625.44, 113,438.16 and 20,220

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Solution

The fourth proportional to 75,625.44, 113,438.16 and 20,220 is: 30,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,625.44 : 113,438.16 = 20,220 : x
  2. Step 2: Convert to fraction form
    75,625.44/113,438.16 = 20,220/x
  3. Step 3: Cross multiply
    75,625.44x = 113,438.16 × 20,220
  4. Step 4: Simplify right side
    75,625.44x = 2,293,719,595.20
  5. Step 5: Solve for x
    x = 2,293,719,595.20/75,625.44
  6. Step 6: Final answer
    x = 30,330.00

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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.