Home / 76,414.78-114,627.30-20,254.06

Finding the Fourth Proportional to 76,414.78, 114,627.30 and 20,254.06

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Solution

The fourth proportional to 76,414.78, 114,627.30 and 20,254.06 is: 30,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,414.78 : 114,627.30 = 20,254.06 : x
  2. Step 2: Convert to fraction form
    76,414.78/114,627.30 = 20,254.06/x
  3. Step 3: Cross multiply
    76,414.78x = 114,627.30 × 20,254.06
  4. Step 4: Simplify right side
    76,414.78x = 2,321,668,211.84
  5. Step 5: Solve for x
    x = 2,321,668,211.84/76,414.78
  6. Step 6: Final answer
    x = 30,382.45

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1.5x scale

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.