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Finding the Fourth Proportional to 55,441.50, 83,162.97 and 18,505.50

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Solution

The fourth proportional to 55,441.50, 83,162.97 and 18,505.50 is: 27,758.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,441.50 : 83,162.97 = 18,505.50 : x
  2. Step 2: Convert to fraction form
    55,441.50/83,162.97 = 18,505.50/x
  3. Step 3: Cross multiply
    55,441.50x = 83,162.97 × 18,505.50
  4. Step 4: Simplify right side
    55,441.50x = 1,538,972,341.34
  5. Step 5: Solve for x
    x = 1,538,972,341.34/55,441.50
  6. Step 6: Final answer
    x = 27,758.49

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1.5x scale

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.