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Finding the Fourth Proportional to 99,053.73, 148,578.97 and 39,887.91

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Solution

The fourth proportional to 99,053.73, 148,578.97 and 39,887.91 is: 59,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,053.73 : 148,578.97 = 39,887.91 : x
  2. Step 2: Convert to fraction form
    99,053.73/148,578.97 = 39,887.91/x
  3. Step 3: Cross multiply
    99,053.73x = 148,578.97 × 39,887.91
  4. Step 4: Simplify right side
    99,053.73x = 5,926,504,583.25
  5. Step 5: Solve for x
    x = 5,926,504,583.25/99,053.73
  6. Step 6: Final answer
    x = 59,831.21

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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.