Home / 85,926.30-118,620.63-54,144.06

Finding the Fourth Proportional to 85,926.30, 118,620.63 and 54,144.06

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Solution

The fourth proportional to 85,926.30, 118,620.63 and 54,144.06 is: 74,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,926.30 : 118,620.63 = 54,144.06 : x
  2. Step 2: Convert to fraction form
    85,926.30/118,620.63 = 54,144.06/x
  3. Step 3: Cross multiply
    85,926.30x = 118,620.63 × 54,144.06
  4. Step 4: Simplify right side
    85,926.30x = 6,422,602,507.96
  5. Step 5: Solve for x
    x = 6,422,602,507.96/85,926.30
  6. Step 6: Final answer
    x = 74,745.48

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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.