Home / 85,203.03-117,487.89-57,996.75

Finding the Fourth Proportional to 85,203.03, 117,487.89 and 57,996.75

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Solution

The fourth proportional to 85,203.03, 117,487.89 and 57,996.75 is: 79,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,203.03 : 117,487.89 = 57,996.75 : x
  2. Step 2: Convert to fraction form
    85,203.03/117,487.89 = 57,996.75/x
  3. Step 3: Cross multiply
    85,203.03x = 117,487.89 × 57,996.75
  4. Step 4: Simplify right side
    85,203.03x = 6,813,915,784.36
  5. Step 5: Solve for x
    x = 6,813,915,784.36/85,203.03
  6. Step 6: Final answer
    x = 79,972.69

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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.