Home / 55,639.76-76,786.20-34,131.92

Finding the Fourth Proportional to 55,639.76, 76,786.20 and 34,131.92

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Solution

The fourth proportional to 55,639.76, 76,786.20 and 34,131.92 is: 47,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,639.76 : 76,786.20 = 34,131.92 : x
  2. Step 2: Convert to fraction form
    55,639.76/76,786.20 = 34,131.92/x
  3. Step 3: Cross multiply
    55,639.76x = 76,786.20 × 34,131.92
  4. Step 4: Simplify right side
    55,639.76x = 2,620,860,627.47
  5. Step 5: Solve for x
    x = 2,620,860,627.47/55,639.76
  6. Step 6: Final answer
    x = 47,104.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.