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Finding the Fourth Proportional to 65,577.67, 90,476.67 and 38,729.68

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Solution

The fourth proportional to 65,577.67, 90,476.67 and 38,729.68 is: 53,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,577.67 : 90,476.67 = 38,729.68 : x
  2. Step 2: Convert to fraction form
    65,577.67/90,476.67 = 38,729.68/x
  3. Step 3: Cross multiply
    65,577.67x = 90,476.67 × 38,729.68
  4. Step 4: Simplify right side
    65,577.67x = 3,504,132,476.57
  5. Step 5: Solve for x
    x = 3,504,132,476.57/65,577.67
  6. Step 6: Final answer
    x = 53,434.84

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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.