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Finding the Fourth Proportional to 79,320.60, 118,972.80 and 26,730.54

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Solution

The fourth proportional to 79,320.60, 118,972.80 and 26,730.54 is: 40,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,320.60 : 118,972.80 = 26,730.54 : x
  2. Step 2: Convert to fraction form
    79,320.60/118,972.80 = 26,730.54/x
  3. Step 3: Cross multiply
    79,320.60x = 118,972.80 × 26,730.54
  4. Step 4: Simplify right side
    79,320.60x = 3,180,207,189.31
  5. Step 5: Solve for x
    x = 3,180,207,189.31/79,320.60
  6. Step 6: Final answer
    x = 40,093.08

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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.