Home / 66,566.64-91,858.20-39,739.44

Finding the Fourth Proportional to 66,566.64, 91,858.20 and 39,739.44

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Solution

The fourth proportional to 66,566.64, 91,858.20 and 39,739.44 is: 54,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.64 : 91,858.20 = 39,739.44 : x
  2. Step 2: Convert to fraction form
    66,566.64/91,858.20 = 39,739.44/x
  3. Step 3: Cross multiply
    66,566.64x = 91,858.20 × 39,739.44
  4. Step 4: Simplify right side
    66,566.64x = 3,650,393,427.41
  5. Step 5: Solve for x
    x = 3,650,393,427.41/66,566.64
  6. Step 6: Final answer
    x = 54,838.18

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1.5x scale

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.