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Finding the Fourth Proportional to 55,863.66, 83,769.09 and 20,300.21

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Solution

The fourth proportional to 55,863.66, 83,769.09 and 20,300.21 is: 30,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,863.66 : 83,769.09 = 20,300.21 : x
  2. Step 2: Convert to fraction form
    55,863.66/83,769.09 = 20,300.21/x
  3. Step 3: Cross multiply
    55,863.66x = 83,769.09 × 20,300.21
  4. Step 4: Simplify right side
    55,863.66x = 1,700,529,699.66
  5. Step 5: Solve for x
    x = 1,700,529,699.66/55,863.66
  6. Step 6: Final answer
    x = 30,440.71

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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.