Home / 49,848.45-74,786.79-20,287.50

Finding the Fourth Proportional to 49,848.45, 74,786.79 and 20,287.50

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Solution

The fourth proportional to 49,848.45, 74,786.79 and 20,287.50 is: 30,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,848.45 : 74,786.79 = 20,287.50 : x
  2. Step 2: Convert to fraction form
    49,848.45/74,786.79 = 20,287.50/x
  3. Step 3: Cross multiply
    49,848.45x = 74,786.79 × 20,287.50
  4. Step 4: Simplify right side
    49,848.45x = 1,517,236,628.19
  5. Step 5: Solve for x
    x = 1,517,236,628.19/49,848.45
  6. Step 6: Final answer
    x = 30,436.99

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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.