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Finding the Fourth Proportional to 100,571.47, 150,909.45 and 40,614.69

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Solution

The fourth proportional to 100,571.47, 150,909.45 and 40,614.69 is: 60,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,571.47 : 150,909.45 = 40,614.69 : x
  2. Step 2: Convert to fraction form
    100,571.47/150,909.45 = 40,614.69/x
  3. Step 3: Cross multiply
    100,571.47x = 150,909.45 × 40,614.69
  4. Step 4: Simplify right side
    100,571.47x = 6,129,140,529.82
  5. Step 5: Solve for x
    x = 6,129,140,529.82/100,571.47
  6. Step 6: Final answer
    x = 60,943.13

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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.