Home / 80,225.14-120,247.48-30,271.32

Finding the Fourth Proportional to 80,225.14, 120,247.48 and 30,271.32

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Solution

The fourth proportional to 80,225.14, 120,247.48 and 30,271.32 is: 45,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,225.14 : 120,247.48 = 30,271.32 : x
  2. Step 2: Convert to fraction form
    80,225.14/120,247.48 = 30,271.32/x
  3. Step 3: Cross multiply
    80,225.14x = 120,247.48 × 30,271.32
  4. Step 4: Simplify right side
    80,225.14x = 3,640,049,946.27
  5. Step 5: Solve for x
    x = 3,640,049,946.27/80,225.14
  6. Step 6: Final answer
    x = 45,372.93

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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.