Home / 77,147.04-115,662.24-61,556.16

Finding the Fourth Proportional to 77,147.04, 115,662.24 and 61,556.16

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Solution

The fourth proportional to 77,147.04, 115,662.24 and 61,556.16 is: 92,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,147.04 : 115,662.24 = 61,556.16 : x
  2. Step 2: Convert to fraction form
    77,147.04/115,662.24 = 61,556.16/x
  3. Step 3: Cross multiply
    77,147.04x = 115,662.24 × 61,556.16
  4. Step 4: Simplify right side
    77,147.04x = 7,119,723,351.40
  5. Step 5: Solve for x
    x = 7,119,723,351.40/77,147.04
  6. Step 6: Final answer
    x = 92,287.71

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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.