Home / 276,904.25-415,356.33-66,542.19

Finding the Fourth Proportional to 276,904.25, 415,356.33 and 66,542.19

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Solution

The fourth proportional to 276,904.25, 415,356.33 and 66,542.19 is: 99,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,904.25 : 415,356.33 = 66,542.19 : x
  2. Step 2: Convert to fraction form
    276,904.25/415,356.33 = 66,542.19/x
  3. Step 3: Cross multiply
    276,904.25x = 415,356.33 × 66,542.19
  4. Step 4: Simplify right side
    276,904.25x = 27,638,719,828.56
  5. Step 5: Solve for x
    x = 27,638,719,828.56/276,904.25
  6. Step 6: Final answer
    x = 99,813.27

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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.