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Finding the Fourth Proportional to 66,554.32, 91,847.28 and 37,878.31

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Solution

The fourth proportional to 66,554.32, 91,847.28 and 37,878.31 is: 52,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.32 : 91,847.28 = 37,878.31 : x
  2. Step 2: Convert to fraction form
    66,554.32/91,847.28 = 37,878.31/x
  3. Step 3: Cross multiply
    66,554.32x = 91,847.28 × 37,878.31
  4. Step 4: Simplify right side
    66,554.32x = 3,479,019,583.23
  5. Step 5: Solve for x
    x = 3,479,019,583.23/66,554.32
  6. Step 6: Final answer
    x = 52,273.38

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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.