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Finding the Fourth Proportional to 55,571.95, 83,316 and 18,109.65

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Solution

The fourth proportional to 55,571.95, 83,316 and 18,109.65 is: 27,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,571.95 : 83,316 = 18,109.65 : x
  2. Step 2: Convert to fraction form
    55,571.95/83,316 = 18,109.65/x
  3. Step 3: Cross multiply
    55,571.95x = 83,316 × 18,109.65
  4. Step 4: Simplify right side
    55,571.95x = 1,508,823,599.40
  5. Step 5: Solve for x
    x = 1,508,823,599.40/55,571.95
  6. Step 6: Final answer
    x = 27,150.81

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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.