Home / 75,619.82-113,421.08-20,220.14

Finding the Fourth Proportional to 75,619.82, 113,421.08 and 20,220.14

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Solution

The fourth proportional to 75,619.82, 113,421.08 and 20,220.14 is: 30,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,619.82 : 113,421.08 = 20,220.14 : x
  2. Step 2: Convert to fraction form
    75,619.82/113,421.08 = 20,220.14/x
  3. Step 3: Cross multiply
    75,619.82x = 113,421.08 × 20,220.14
  4. Step 4: Simplify right side
    75,619.82x = 2,293,390,116.55
  5. Step 5: Solve for x
    x = 2,293,390,116.55/75,619.82
  6. Step 6: Final answer
    x = 30,327.90

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1.5x scale

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.