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Finding the Fourth Proportional to 45,369.80, 68,045.82 and 43,119.41

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Solution

The fourth proportional to 45,369.80, 68,045.82 and 43,119.41 is: 64,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,369.80 : 68,045.82 = 43,119.41 : x
  2. Step 2: Convert to fraction form
    45,369.80/68,045.82 = 43,119.41/x
  3. Step 3: Cross multiply
    45,369.80x = 68,045.82 × 43,119.41
  4. Step 4: Simplify right side
    45,369.80x = 2,934,095,611.37
  5. Step 5: Solve for x
    x = 2,934,095,611.37/45,369.80
  6. Step 6: Final answer
    x = 64,670.68

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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.