Home / 51,764.31-77,650.18-13,813.38

Finding the Fourth Proportional to 51,764.31, 77,650.18 and 13,813.38

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Solution

The fourth proportional to 51,764.31, 77,650.18 and 13,813.38 is: 20,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,764.31 : 77,650.18 = 13,813.38 : x
  2. Step 2: Convert to fraction form
    51,764.31/77,650.18 = 13,813.38/x
  3. Step 3: Cross multiply
    51,764.31x = 77,650.18 × 13,813.38
  4. Step 4: Simplify right side
    51,764.31x = 1,072,611,443.41
  5. Step 5: Solve for x
    x = 1,072,611,443.41/51,764.31
  6. Step 6: Final answer
    x = 20,721.06

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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.