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Finding the Fourth Proportional to 85,391.03, 117,844.22 and 47,150.45

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Solution

The fourth proportional to 85,391.03, 117,844.22 and 47,150.45 is: 65,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,391.03 : 117,844.22 = 47,150.45 : x
  2. Step 2: Convert to fraction form
    85,391.03/117,844.22 = 47,150.45/x
  3. Step 3: Cross multiply
    85,391.03x = 117,844.22 × 47,150.45
  4. Step 4: Simplify right side
    85,391.03x = 5,556,407,177.93
  5. Step 5: Solve for x
    x = 5,556,407,177.93/85,391.03
  6. Step 6: Final answer
    x = 65,070.15

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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.