Home / 51,755.98-77,650.36-18,475.30

Finding the Fourth Proportional to 51,755.98, 77,650.36 and 18,475.30

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Solution

The fourth proportional to 51,755.98, 77,650.36 and 18,475.30 is: 27,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,755.98 : 77,650.36 = 18,475.30 : x
  2. Step 2: Convert to fraction form
    51,755.98/77,650.36 = 18,475.30/x
  3. Step 3: Cross multiply
    51,755.98x = 77,650.36 × 18,475.30
  4. Step 4: Simplify right side
    51,755.98x = 1,434,613,696.11
  5. Step 5: Solve for x
    x = 1,434,613,696.11/51,755.98
  6. Step 6: Final answer
    x = 27,718.80

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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.