Home / 77,126.70-115,699.32-27,196.50

Finding the Fourth Proportional to 77,126.70, 115,699.32 and 27,196.50

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Solution

The fourth proportional to 77,126.70, 115,699.32 and 27,196.50 is: 40,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,126.70 : 115,699.32 = 27,196.50 : x
  2. Step 2: Convert to fraction form
    77,126.70/115,699.32 = 27,196.50/x
  3. Step 3: Cross multiply
    77,126.70x = 115,699.32 × 27,196.50
  4. Step 4: Simplify right side
    77,126.70x = 3,146,616,556.38
  5. Step 5: Solve for x
    x = 3,146,616,556.38/77,126.70
  6. Step 6: Final answer
    x = 40,798.02

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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.