Home / 72,828.30-109,257.44-30,708.50

Finding the Fourth Proportional to 72,828.30, 109,257.44 and 30,708.50

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Solution

The fourth proportional to 72,828.30, 109,257.44 and 30,708.50 is: 46,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,828.30 : 109,257.44 = 30,708.50 : x
  2. Step 2: Convert to fraction form
    72,828.30/109,257.44 = 30,708.50/x
  3. Step 3: Cross multiply
    72,828.30x = 109,257.44 × 30,708.50
  4. Step 4: Simplify right side
    72,828.30x = 3,355,132,096.24
  5. Step 5: Solve for x
    x = 3,355,132,096.24/72,828.30
  6. Step 6: Final answer
    x = 46,069.07

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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.