Home / 51,977.84-71,730.60-30,760.88

Finding the Fourth Proportional to 51,977.84, 71,730.60 and 30,760.88

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Solution

The fourth proportional to 51,977.84, 71,730.60 and 30,760.88 is: 42,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.84 : 71,730.60 = 30,760.88 : x
  2. Step 2: Convert to fraction form
    51,977.84/71,730.60 = 30,760.88/x
  3. Step 3: Cross multiply
    51,977.84x = 71,730.60 × 30,760.88
  4. Step 4: Simplify right side
    51,977.84x = 2,206,496,378.93
  5. Step 5: Solve for x
    x = 2,206,496,378.93/51,977.84
  6. Step 6: Final answer
    x = 42,450.71

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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.