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Finding the Fourth Proportional to 100,039.40, 150,007.80 and 29,909.60

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Solution

The fourth proportional to 100,039.40, 150,007.80 and 29,909.60 is: 44,849.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039.40 : 150,007.80 = 29,909.60 : x
  2. Step 2: Convert to fraction form
    100,039.40/150,007.80 = 29,909.60/x
  3. Step 3: Cross multiply
    100,039.40x = 150,007.80 × 29,909.60
  4. Step 4: Simplify right side
    100,039.40x = 4,486,673,294.88
  5. Step 5: Solve for x
    x = 4,486,673,294.88/100,039.40
  6. Step 6: Final answer
    x = 44,849.06

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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.