Home / 75,171.32-112,611.63-41,790.20

Finding the Fourth Proportional to 75,171.32, 112,611.63 and 41,790.20

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Solution

The fourth proportional to 75,171.32, 112,611.63 and 41,790.20 is: 62,604.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,171.32 : 112,611.63 = 41,790.20 : x
  2. Step 2: Convert to fraction form
    75,171.32/112,611.63 = 41,790.20/x
  3. Step 3: Cross multiply
    75,171.32x = 112,611.63 × 41,790.20
  4. Step 4: Simplify right side
    75,171.32x = 4,706,062,540.03
  5. Step 5: Solve for x
    x = 4,706,062,540.03/75,171.32
  6. Step 6: Final answer
    x = 62,604.50

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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.