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Finding the Fourth Proportional to 55,251.70, 82,899.15 and 20,194.90

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Solution

The fourth proportional to 55,251.70, 82,899.15 and 20,194.90 is: 30,300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,251.70 : 82,899.15 = 20,194.90 : x
  2. Step 2: Convert to fraction form
    55,251.70/82,899.15 = 20,194.90/x
  3. Step 3: Cross multiply
    55,251.70x = 82,899.15 × 20,194.90
  4. Step 4: Simplify right side
    55,251.70x = 1,674,140,044.34
  5. Step 5: Solve for x
    x = 1,674,140,044.34/55,251.70
  6. Step 6: Final answer
    x = 30,300.24

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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.