Home / 85,402.16-117,860.44-47,676.40

Finding the Fourth Proportional to 85,402.16, 117,860.44 and 47,676.40

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Solution

The fourth proportional to 85,402.16, 117,860.44 and 47,676.40 is: 65,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,402.16 : 117,860.44 = 47,676.40 : x
  2. Step 2: Convert to fraction form
    85,402.16/117,860.44 = 47,676.40/x
  3. Step 3: Cross multiply
    85,402.16x = 117,860.44 × 47,676.40
  4. Step 4: Simplify right side
    85,402.16x = 5,619,161,481.62
  5. Step 5: Solve for x
    x = 5,619,161,481.62/85,402.16
  6. Step 6: Final answer
    x = 65,796.48

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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.