Home / 78,186.70-117,272.53-22,025.94

Finding the Fourth Proportional to 78,186.70, 117,272.53 and 22,025.94

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Solution

The fourth proportional to 78,186.70, 117,272.53 and 22,025.94 is: 33,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,186.70 : 117,272.53 = 22,025.94 : x
  2. Step 2: Convert to fraction form
    78,186.70/117,272.53 = 22,025.94/x
  3. Step 3: Cross multiply
    78,186.70x = 117,272.53 × 22,025.94
  4. Step 4: Simplify right side
    78,186.70x = 2,583,037,709.43
  5. Step 5: Solve for x
    x = 2,583,037,709.43/78,186.70
  6. Step 6: Final answer
    x = 33,036.79

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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.