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Finding the Fourth Proportional to 55,065, 75,989.79 and 29,914.50

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Solution

The fourth proportional to 55,065, 75,989.79 and 29,914.50 is: 41,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,065 : 75,989.79 = 29,914.50 : x
  2. Step 2: Convert to fraction form
    55,065/75,989.79 = 29,914.50/x
  3. Step 3: Cross multiply
    55,065x = 75,989.79 × 29,914.50
  4. Step 4: Simplify right side
    55,065x = 2,273,196,572.96
  5. Step 5: Solve for x
    x = 2,273,196,572.96/55,065
  6. Step 6: Final answer
    x = 41,282.06

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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.