Home / 51,900.11-77,838.22-20,310.92

Finding the Fourth Proportional to 51,900.11, 77,838.22 and 20,310.92

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Solution

The fourth proportional to 51,900.11, 77,838.22 and 20,310.92 is: 30,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,900.11 : 77,838.22 = 20,310.92 : x
  2. Step 2: Convert to fraction form
    51,900.11/77,838.22 = 20,310.92/x
  3. Step 3: Cross multiply
    51,900.11x = 77,838.22 × 20,310.92
  4. Step 4: Simplify right side
    51,900.11x = 1,580,966,003.18
  5. Step 5: Solve for x
    x = 1,580,966,003.18/51,900.11
  6. Step 6: Final answer
    x = 30,461.71

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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.