Home / 68,811.56-94,961.06-38,603.60

Finding the Fourth Proportional to 68,811.56, 94,961.06 and 38,603.60

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Solution

The fourth proportional to 68,811.56, 94,961.06 and 38,603.60 is: 53,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,811.56 : 94,961.06 = 38,603.60 : x
  2. Step 2: Convert to fraction form
    68,811.56/94,961.06 = 38,603.60/x
  3. Step 3: Cross multiply
    68,811.56x = 94,961.06 × 38,603.60
  4. Step 4: Simplify right side
    68,811.56x = 3,665,838,775.82
  5. Step 5: Solve for x
    x = 3,665,838,775.82/68,811.56
  6. Step 6: Final answer
    x = 53,273.59

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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.