Home / 77,556.22-116,320.46-20,630.43

Finding the Fourth Proportional to 77,556.22, 116,320.46 and 20,630.43

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Solution

The fourth proportional to 77,556.22, 116,320.46 and 20,630.43 is: 30,941.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,556.22 : 116,320.46 = 20,630.43 : x
  2. Step 2: Convert to fraction form
    77,556.22/116,320.46 = 20,630.43/x
  3. Step 3: Cross multiply
    77,556.22x = 116,320.46 × 20,630.43
  4. Step 4: Simplify right side
    77,556.22x = 2,399,740,526.00
  5. Step 5: Solve for x
    x = 2,399,740,526.00/77,556.22
  6. Step 6: Final answer
    x = 30,941.95

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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.