Home / 85,051.72-117,372.12-47,325.97

Finding the Fourth Proportional to 85,051.72, 117,372.12 and 47,325.97

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Solution

The fourth proportional to 85,051.72, 117,372.12 and 47,325.97 is: 65,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,051.72 : 117,372.12 = 47,325.97 : x
  2. Step 2: Convert to fraction form
    85,051.72/117,372.12 = 47,325.97/x
  3. Step 3: Cross multiply
    85,051.72x = 117,372.12 × 47,325.97
  4. Step 4: Simplify right side
    85,051.72x = 5,554,748,843.10
  5. Step 5: Solve for x
    x = 5,554,748,843.10/85,051.72
  6. Step 6: Final answer
    x = 65,310.25

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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.