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Finding the Fourth Proportional to 45,136.62, 67,630.23 and 31,923.54

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Solution

The fourth proportional to 45,136.62, 67,630.23 and 31,923.54 is: 47,832.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,136.62 : 67,630.23 = 31,923.54 : x
  2. Step 2: Convert to fraction form
    45,136.62/67,630.23 = 31,923.54/x
  3. Step 3: Cross multiply
    45,136.62x = 67,630.23 × 31,923.54
  4. Step 4: Simplify right side
    45,136.62x = 2,158,996,352.61
  5. Step 5: Solve for x
    x = 2,158,996,352.61/45,136.62
  6. Step 6: Final answer
    x = 47,832.48

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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.