Home / 75,511.20-113,266.80-67,994.40

Finding the Fourth Proportional to 75,511.20, 113,266.80 and 67,994.40

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Solution

The fourth proportional to 75,511.20, 113,266.80 and 67,994.40 is: 101,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,511.20 : 113,266.80 = 67,994.40 : x
  2. Step 2: Convert to fraction form
    75,511.20/113,266.80 = 67,994.40/x
  3. Step 3: Cross multiply
    75,511.20x = 113,266.80 × 67,994.40
  4. Step 4: Simplify right side
    75,511.20x = 7,701,508,105.92
  5. Step 5: Solve for x
    x = 7,701,508,105.92/75,511.20
  6. Step 6: Final answer
    x = 101,991.60

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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.