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Finding the Fourth Proportional to 100,509.59, 150,781.77 and 33,950.21

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Solution

The fourth proportional to 100,509.59, 150,781.77 and 33,950.21 is: 50,931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,509.59 : 150,781.77 = 33,950.21 : x
  2. Step 2: Convert to fraction form
    100,509.59/150,781.77 = 33,950.21/x
  3. Step 3: Cross multiply
    100,509.59x = 150,781.77 × 33,950.21
  4. Step 4: Simplify right side
    100,509.59x = 5,119,072,001.76
  5. Step 5: Solve for x
    x = 5,119,072,001.76/100,509.59
  6. Step 6: Final answer
    x = 50,931.18

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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.