Home / 76,436.06-105,481.17-41,980.41

Finding the Fourth Proportional to 76,436.06, 105,481.17 and 41,980.41

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Solution

The fourth proportional to 76,436.06, 105,481.17 and 41,980.41 is: 57,932.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,436.06 : 105,481.17 = 41,980.41 : x
  2. Step 2: Convert to fraction form
    76,436.06/105,481.17 = 41,980.41/x
  3. Step 3: Cross multiply
    76,436.06x = 105,481.17 × 41,980.41
  4. Step 4: Simplify right side
    76,436.06x = 4,428,142,763.88
  5. Step 5: Solve for x
    x = 4,428,142,763.88/76,436.06
  6. Step 6: Final answer
    x = 57,932.64

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1.5x scale

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.