Home / 72,927.44-109,409.61-20,336.93

Finding the Fourth Proportional to 72,927.44, 109,409.61 and 20,336.93

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Solution

The fourth proportional to 72,927.44, 109,409.61 and 20,336.93 is: 30,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.44 : 109,409.61 = 20,336.93 : x
  2. Step 2: Convert to fraction form
    72,927.44/109,409.61 = 20,336.93/x
  3. Step 3: Cross multiply
    72,927.44x = 109,409.61 × 20,336.93
  4. Step 4: Simplify right side
    72,927.44x = 2,225,055,579.90
  5. Step 5: Solve for x
    x = 2,225,055,579.90/72,927.44
  6. Step 6: Final answer
    x = 30,510.54

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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.