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Finding the Fourth Proportional to 79,077.57, 118,597.73 and 29,130.54

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Solution

The fourth proportional to 79,077.57, 118,597.73 and 29,130.54 is: 43,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.57 : 118,597.73 = 29,130.54 : x
  2. Step 2: Convert to fraction form
    79,077.57/118,597.73 = 29,130.54/x
  3. Step 3: Cross multiply
    79,077.57x = 118,597.73 × 29,130.54
  4. Step 4: Simplify right side
    79,077.57x = 3,454,815,772.02
  5. Step 5: Solve for x
    x = 3,454,815,772.02/79,077.57
  6. Step 6: Final answer
    x = 43,688.95

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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.