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Finding the Fourth Proportional to 85,122.36, 117,469.08 and 46,881

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Solution

The fourth proportional to 85,122.36, 117,469.08 and 46,881 is: 64,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,122.36 : 117,469.08 = 46,881 : x
  2. Step 2: Convert to fraction form
    85,122.36/117,469.08 = 46,881/x
  3. Step 3: Cross multiply
    85,122.36x = 117,469.08 × 46,881
  4. Step 4: Simplify right side
    85,122.36x = 5,507,067,939.48
  5. Step 5: Solve for x
    x = 5,507,067,939.48/85,122.36
  6. Step 6: Final answer
    x = 64,695.90

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1.5x scale

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.