Home / 51,661.05-77,481.36-14,211.45

Finding the Fourth Proportional to 51,661.05, 77,481.36 and 14,211.45

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Solution

The fourth proportional to 51,661.05, 77,481.36 and 14,211.45 is: 21,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,661.05 : 77,481.36 = 14,211.45 : x
  2. Step 2: Convert to fraction form
    51,661.05/77,481.36 = 14,211.45/x
  3. Step 3: Cross multiply
    51,661.05x = 77,481.36 × 14,211.45
  4. Step 4: Simplify right side
    51,661.05x = 1,101,122,473.57
  5. Step 5: Solve for x
    x = 1,101,122,473.57/51,661.05
  6. Step 6: Final answer
    x = 21,314.36

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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.