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Finding the Fourth Proportional to 103,630.10, 155,527.17 and 40,480.48

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Solution

The fourth proportional to 103,630.10, 155,527.17 and 40,480.48 is: 60,752.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.10 : 155,527.17 = 40,480.48 : x
  2. Step 2: Convert to fraction form
    103,630.10/155,527.17 = 40,480.48/x
  3. Step 3: Cross multiply
    103,630.10x = 155,527.17 × 40,480.48
  4. Step 4: Simplify right side
    103,630.10x = 6,295,814,494.64
  5. Step 5: Solve for x
    x = 6,295,814,494.64/103,630.10
  6. Step 6: Final answer
    x = 60,752.76

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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.