Home / 76,907.76-115,292.52-30,194.16

Finding the Fourth Proportional to 76,907.76, 115,292.52 and 30,194.16

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Solution

The fourth proportional to 76,907.76, 115,292.52 and 30,194.16 is: 45,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,907.76 : 115,292.52 = 30,194.16 : x
  2. Step 2: Convert to fraction form
    76,907.76/115,292.52 = 30,194.16/x
  3. Step 3: Cross multiply
    76,907.76x = 115,292.52 × 30,194.16
  4. Step 4: Simplify right side
    76,907.76x = 3,481,160,795.68
  5. Step 5: Solve for x
    x = 3,481,160,795.68/76,907.76
  6. Step 6: Final answer
    x = 45,264.10

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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.