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Finding the Fourth Proportional to 60,519.10, 90,790.80 and 18,401.80

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Solution

The fourth proportional to 60,519.10, 90,790.80 and 18,401.80 is: 27,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,519.10 : 90,790.80 = 18,401.80 : x
  2. Step 2: Convert to fraction form
    60,519.10/90,790.80 = 18,401.80/x
  3. Step 3: Cross multiply
    60,519.10x = 90,790.80 × 18,401.80
  4. Step 4: Simplify right side
    60,519.10x = 1,670,714,143.44
  5. Step 5: Solve for x
    x = 1,670,714,143.44/60,519.10
  6. Step 6: Final answer
    x = 27,606.39

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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.