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Finding the Fourth Proportional to 65,771.54, 90,764.61 and 35,556.89

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Solution

The fourth proportional to 65,771.54, 90,764.61 and 35,556.89 is: 49,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,771.54 : 90,764.61 = 35,556.89 : x
  2. Step 2: Convert to fraction form
    65,771.54/90,764.61 = 35,556.89/x
  3. Step 3: Cross multiply
    65,771.54x = 90,764.61 × 35,556.89
  4. Step 4: Simplify right side
    65,771.54x = 3,227,306,799.84
  5. Step 5: Solve for x
    x = 3,227,306,799.84/65,771.54
  6. Step 6: Final answer
    x = 49,068.44

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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.