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Finding the Fourth Proportional to 45,207.81, 67,814.97 and 11,927.49

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Solution

The fourth proportional to 45,207.81, 67,814.97 and 11,927.49 is: 17,892.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.81 : 67,814.97 = 11,927.49 : x
  2. Step 2: Convert to fraction form
    45,207.81/67,814.97 = 11,927.49/x
  3. Step 3: Cross multiply
    45,207.81x = 67,814.97 × 11,927.49
  4. Step 4: Simplify right side
    45,207.81x = 808,862,376.53
  5. Step 5: Solve for x
    x = 808,862,376.53/45,207.81
  6. Step 6: Final answer
    x = 17,892.09

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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.