Home / 76,043.84-113,986.66-28,626.36

Finding the Fourth Proportional to 76,043.84, 113,986.66 and 28,626.36

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Solution

The fourth proportional to 76,043.84, 113,986.66 and 28,626.36 is: 42,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,043.84 : 113,986.66 = 28,626.36 : x
  2. Step 2: Convert to fraction form
    76,043.84/113,986.66 = 28,626.36/x
  3. Step 3: Cross multiply
    76,043.84x = 113,986.66 × 28,626.36
  4. Step 4: Simplify right side
    76,043.84x = 3,263,023,164.36
  5. Step 5: Solve for x
    x = 3,263,023,164.36/76,043.84
  6. Step 6: Final answer
    x = 42,909.76

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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.