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Finding the Fourth Proportional to 79,353.93, 118,911.29 and 47,729.45

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Solution

The fourth proportional to 79,353.93, 118,911.29 and 47,729.45 is: 71,522.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,353.93 : 118,911.29 = 47,729.45 : x
  2. Step 2: Convert to fraction form
    79,353.93/118,911.29 = 47,729.45/x
  3. Step 3: Cross multiply
    79,353.93x = 118,911.29 × 47,729.45
  4. Step 4: Simplify right side
    79,353.93x = 5,675,570,797.60
  5. Step 5: Solve for x
    x = 5,675,570,797.60/79,353.93
  6. Step 6: Final answer
    x = 71,522.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.