Home / 57,387.10-86,087.20-15,268.90

Finding the Fourth Proportional to 57,387.10, 86,087.20 and 15,268.90

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Solution

The fourth proportional to 57,387.10, 86,087.20 and 15,268.90 is: 22,905.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,387.10 : 86,087.20 = 15,268.90 : x
  2. Step 2: Convert to fraction form
    57,387.10/86,087.20 = 15,268.90/x
  3. Step 3: Cross multiply
    57,387.10x = 86,087.20 × 15,268.90
  4. Step 4: Simplify right side
    57,387.10x = 1,314,456,848.08
  5. Step 5: Solve for x
    x = 1,314,456,848.08/57,387.10
  6. Step 6: Final answer
    x = 22,905.09

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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.