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Finding the Fourth Proportional to 79,195.45, 109,289.71 and 47,364.35

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Solution

The fourth proportional to 79,195.45, 109,289.71 and 47,364.35 is: 65,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,195.45 : 109,289.71 = 47,364.35 : x
  2. Step 2: Convert to fraction form
    79,195.45/109,289.71 = 47,364.35/x
  3. Step 3: Cross multiply
    79,195.45x = 109,289.71 × 47,364.35
  4. Step 4: Simplify right side
    79,195.45x = 5,176,436,075.84
  5. Step 5: Solve for x
    x = 5,176,436,075.84/79,195.45
  6. Step 6: Final answer
    x = 65,362.80

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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.