Home / 57,799.40-86,699.10-18,359.60

Finding the Fourth Proportional to 57,799.40, 86,699.10 and 18,359.60

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Solution

The fourth proportional to 57,799.40, 86,699.10 and 18,359.60 is: 27,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,799.40 : 86,699.10 = 18,359.60 : x
  2. Step 2: Convert to fraction form
    57,799.40/86,699.10 = 18,359.60/x
  3. Step 3: Cross multiply
    57,799.40x = 86,699.10 × 18,359.60
  4. Step 4: Simplify right side
    57,799.40x = 1,591,760,796.36
  5. Step 5: Solve for x
    x = 1,591,760,796.36/57,799.40
  6. Step 6: Final answer
    x = 27,539.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.