Home / 75,578.12-113,318.58-36,134.36

Finding the Fourth Proportional to 75,578.12, 113,318.58 and 36,134.36

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Solution

The fourth proportional to 75,578.12, 113,318.58 and 36,134.36 is: 54,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,578.12 : 113,318.58 = 36,134.36 : x
  2. Step 2: Convert to fraction form
    75,578.12/113,318.58 = 36,134.36/x
  3. Step 3: Cross multiply
    75,578.12x = 113,318.58 × 36,134.36
  4. Step 4: Simplify right side
    75,578.12x = 4,094,694,364.41
  5. Step 5: Solve for x
    x = 4,094,694,364.41/75,578.12
  6. Step 6: Final answer
    x = 54,178.30

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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.