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Finding the Fourth Proportional to 80,852.88, 111,579.81 and 45,045.09

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Solution

The fourth proportional to 80,852.88, 111,579.81 and 45,045.09 is: 62,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852.88 : 111,579.81 = 45,045.09 : x
  2. Step 2: Convert to fraction form
    80,852.88/111,579.81 = 45,045.09/x
  3. Step 3: Cross multiply
    80,852.88x = 111,579.81 × 45,045.09
  4. Step 4: Simplify right side
    80,852.88x = 5,026,122,583.63
  5. Step 5: Solve for x
    x = 5,026,122,583.63/80,852.88
  6. Step 6: Final answer
    x = 62,163.80

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1.5x scale

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.