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Finding the Fourth Proportional to 85,383.63, 117,835.88 and 47,150.46

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Solution

The fourth proportional to 85,383.63, 117,835.88 and 47,150.46 is: 65,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,383.63 : 117,835.88 = 47,150.46 : x
  2. Step 2: Convert to fraction form
    85,383.63/117,835.88 = 47,150.46/x
  3. Step 3: Cross multiply
    85,383.63x = 117,835.88 × 47,150.46
  4. Step 4: Simplify right side
    85,383.63x = 5,556,015,710.75
  5. Step 5: Solve for x
    x = 5,556,015,710.75/85,383.63
  6. Step 6: Final answer
    x = 65,071.21

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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.