Home / 51,874.32-77,813.04-20,283.12

Finding the Fourth Proportional to 51,874.32, 77,813.04 and 20,283.12

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Solution

The fourth proportional to 51,874.32, 77,813.04 and 20,283.12 is: 30,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,874.32 : 77,813.04 = 20,283.12 : x
  2. Step 2: Convert to fraction form
    51,874.32/77,813.04 = 20,283.12/x
  3. Step 3: Cross multiply
    51,874.32x = 77,813.04 × 20,283.12
  4. Step 4: Simplify right side
    51,874.32x = 1,578,291,227.88
  5. Step 5: Solve for x
    x = 1,578,291,227.88/51,874.32
  6. Step 6: Final answer
    x = 30,425.29

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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.