Home / 45,781.66-68,683.13-14,190.04

Finding the Fourth Proportional to 45,781.66, 68,683.13 and 14,190.04

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Solution

The fourth proportional to 45,781.66, 68,683.13 and 14,190.04 is: 21,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781.66 : 68,683.13 = 14,190.04 : x
  2. Step 2: Convert to fraction form
    45,781.66/68,683.13 = 14,190.04/x
  3. Step 3: Cross multiply
    45,781.66x = 68,683.13 × 14,190.04
  4. Step 4: Simplify right side
    45,781.66x = 974,616,548.28
  5. Step 5: Solve for x
    x = 974,616,548.28/45,781.66
  6. Step 6: Final answer
    x = 21,288.36

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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.