Home / 78,367.20-108,148.88-46,104.09

Finding the Fourth Proportional to 78,367.20, 108,148.88 and 46,104.09

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Solution

The fourth proportional to 78,367.20, 108,148.88 and 46,104.09 is: 63,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,367.20 : 108,148.88 = 46,104.09 : x
  2. Step 2: Convert to fraction form
    78,367.20/108,148.88 = 46,104.09/x
  3. Step 3: Cross multiply
    78,367.20x = 108,148.88 × 46,104.09
  4. Step 4: Simplify right side
    78,367.20x = 4,986,105,696.92
  5. Step 5: Solve for x
    x = 4,986,105,696.92/78,367.20
  6. Step 6: Final answer
    x = 63,624.91

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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.