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Finding the Fourth Proportional to 84,696.53, 127,016.81 and 28,522.70

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Solution

The fourth proportional to 84,696.53, 127,016.81 and 28,522.70 is: 42,774.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,696.53 : 127,016.81 = 28,522.70 : x
  2. Step 2: Convert to fraction form
    84,696.53/127,016.81 = 28,522.70/x
  3. Step 3: Cross multiply
    84,696.53x = 127,016.81 × 28,522.70
  4. Step 4: Simplify right side
    84,696.53x = 3,622,862,366.59
  5. Step 5: Solve for x
    x = 3,622,862,366.59/84,696.53
  6. Step 6: Final answer
    x = 42,774.63

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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.