Home / 75,063.60-112,559.04-30,672.72

Finding the Fourth Proportional to 75,063.60, 112,559.04 and 30,672.72

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Solution

The fourth proportional to 75,063.60, 112,559.04 and 30,672.72 is: 45,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.60 : 112,559.04 = 30,672.72 : x
  2. Step 2: Convert to fraction form
    75,063.60/112,559.04 = 30,672.72/x
  3. Step 3: Cross multiply
    75,063.60x = 112,559.04 × 30,672.72
  4. Step 4: Simplify right side
    75,063.60x = 3,452,491,917.39
  5. Step 5: Solve for x
    x = 3,452,491,917.39/75,063.60
  6. Step 6: Final answer
    x = 45,994.22

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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.