Home / 75,378.58-112,989.16-25,441.46

Finding the Fourth Proportional to 75,378.58, 112,989.16 and 25,441.46

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Solution

The fourth proportional to 75,378.58, 112,989.16 and 25,441.46 is: 38,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,378.58 : 112,989.16 = 25,441.46 : x
  2. Step 2: Convert to fraction form
    75,378.58/112,989.16 = 25,441.46/x
  3. Step 3: Cross multiply
    75,378.58x = 112,989.16 × 25,441.46
  4. Step 4: Simplify right side
    75,378.58x = 2,874,609,194.57
  5. Step 5: Solve for x
    x = 2,874,609,194.57/75,378.58
  6. Step 6: Final answer
    x = 38,135.62

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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.