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Finding the Fourth Proportional to 36,699.20, 55,048.80 and 8,997.20

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Solution

The fourth proportional to 36,699.20, 55,048.80 and 8,997.20 is: 13,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,699.20 : 55,048.80 = 8,997.20 : x
  2. Step 2: Convert to fraction form
    36,699.20/55,048.80 = 8,997.20/x
  3. Step 3: Cross multiply
    36,699.20x = 55,048.80 × 8,997.20
  4. Step 4: Simplify right side
    36,699.20x = 495,285,063.36
  5. Step 5: Solve for x
    x = 495,285,063.36/36,699.20
  6. Step 6: Final answer
    x = 13,495.80

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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.