Home / 78,231.57-117,332.44-22,057.86

Finding the Fourth Proportional to 78,231.57, 117,332.44 and 22,057.86

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Solution

The fourth proportional to 78,231.57, 117,332.44 and 22,057.86 is: 33,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,231.57 : 117,332.44 = 22,057.86 : x
  2. Step 2: Convert to fraction form
    78,231.57/117,332.44 = 22,057.86/x
  3. Step 3: Cross multiply
    78,231.57x = 117,332.44 × 22,057.86
  4. Step 4: Simplify right side
    78,231.57x = 2,588,102,534.98
  5. Step 5: Solve for x
    x = 2,588,102,534.98/78,231.57
  6. Step 6: Final answer
    x = 33,082.58

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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.