Home / 72,825.72-109,281.04-30,703.22

Finding the Fourth Proportional to 72,825.72, 109,281.04 and 30,703.22

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Solution

The fourth proportional to 72,825.72, 109,281.04 and 30,703.22 is: 46,072.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.72 : 109,281.04 = 30,703.22 : x
  2. Step 2: Convert to fraction form
    72,825.72/109,281.04 = 30,703.22/x
  3. Step 3: Cross multiply
    72,825.72x = 109,281.04 × 30,703.22
  4. Step 4: Simplify right side
    72,825.72x = 3,355,279,812.95
  5. Step 5: Solve for x
    x = 3,355,279,812.95/72,825.72
  6. Step 6: Final answer
    x = 46,072.73

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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.