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Finding the Fourth Proportional to 66,696.48, 92,044.09 and 38,411.28

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Solution

The fourth proportional to 66,696.48, 92,044.09 and 38,411.28 is: 53,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.48 : 92,044.09 = 38,411.28 : x
  2. Step 2: Convert to fraction form
    66,696.48/92,044.09 = 38,411.28/x
  3. Step 3: Cross multiply
    66,696.48x = 92,044.09 × 38,411.28
  4. Step 4: Simplify right side
    66,696.48x = 3,535,531,313.34
  5. Step 5: Solve for x
    x = 3,535,531,313.34/66,696.48
  6. Step 6: Final answer
    x = 53,009.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.