Home / 66,633.14-91,938.56-39,784.34

Finding the Fourth Proportional to 66,633.14, 91,938.56 and 39,784.34

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Solution

The fourth proportional to 66,633.14, 91,938.56 and 39,784.34 is: 54,893.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,633.14 : 91,938.56 = 39,784.34 : x
  2. Step 2: Convert to fraction form
    66,633.14/91,938.56 = 39,784.34/x
  3. Step 3: Cross multiply
    66,633.14x = 91,938.56 × 39,784.34
  4. Step 4: Simplify right side
    66,633.14x = 3,657,714,930.15
  5. Step 5: Solve for x
    x = 3,657,714,930.15/66,633.14
  6. Step 6: Final answer
    x = 54,893.33

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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.