Home / 83,432.94-115,120.20-47,634.60

Finding the Fourth Proportional to 83,432.94, 115,120.20 and 47,634.60

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Solution

The fourth proportional to 83,432.94, 115,120.20 and 47,634.60 is: 65,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.94 : 115,120.20 = 47,634.60 : x
  2. Step 2: Convert to fraction form
    83,432.94/115,120.20 = 47,634.60/x
  3. Step 3: Cross multiply
    83,432.94x = 115,120.20 × 47,634.60
  4. Step 4: Simplify right side
    83,432.94x = 5,483,704,678.92
  5. Step 5: Solve for x
    x = 5,483,704,678.92/83,432.94
  6. Step 6: Final answer
    x = 65,725.90

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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.