Home / 85,268.10-127,880.34-25,282.56

Finding the Fourth Proportional to 85,268.10, 127,880.34 and 25,282.56

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Solution

The fourth proportional to 85,268.10, 127,880.34 and 25,282.56 is: 37,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,268.10 : 127,880.34 = 25,282.56 : x
  2. Step 2: Convert to fraction form
    85,268.10/127,880.34 = 25,282.56/x
  3. Step 3: Cross multiply
    85,268.10x = 127,880.34 × 25,282.56
  4. Step 4: Simplify right side
    85,268.10x = 3,233,142,368.87
  5. Step 5: Solve for x
    x = 3,233,142,368.87/85,268.10
  6. Step 6: Final answer
    x = 37,917.37

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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.