Home / 75,701.66-113,555.61-28,311.98

Finding the Fourth Proportional to 75,701.66, 113,555.61 and 28,311.98

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Solution

The fourth proportional to 75,701.66, 113,555.61 and 28,311.98 is: 42,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,701.66 : 113,555.61 = 28,311.98 : x
  2. Step 2: Convert to fraction form
    75,701.66/113,555.61 = 28,311.98/x
  3. Step 3: Cross multiply
    75,701.66x = 113,555.61 × 28,311.98
  4. Step 4: Simplify right side
    75,701.66x = 3,214,983,591.43
  5. Step 5: Solve for x
    x = 3,214,983,591.43/75,701.66
  6. Step 6: Final answer
    x = 42,469.13

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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.