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Finding the Fourth Proportional to 66,726, 92,083.32 and 38,427.12

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Solution

The fourth proportional to 66,726, 92,083.32 and 38,427.12 is: 53,030.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726 : 92,083.32 = 38,427.12 : x
  2. Step 2: Convert to fraction form
    66,726/92,083.32 = 38,427.12/x
  3. Step 3: Cross multiply
    66,726x = 92,083.32 × 38,427.12
  4. Step 4: Simplify right side
    66,726x = 3,538,496,787.64
  5. Step 5: Solve for x
    x = 3,538,496,787.64/66,726
  6. Step 6: Final answer
    x = 53,030.25

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Why These Related Problems?

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