Home / 72,868.08-109,220.07-37,229.70

Finding the Fourth Proportional to 72,868.08, 109,220.07 and 37,229.70

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Solution

The fourth proportional to 72,868.08, 109,220.07 and 37,229.70 is: 55,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,868.08 : 109,220.07 = 37,229.70 : x
  2. Step 2: Convert to fraction form
    72,868.08/109,220.07 = 37,229.70/x
  3. Step 3: Cross multiply
    72,868.08x = 109,220.07 × 37,229.70
  4. Step 4: Simplify right side
    72,868.08x = 4,066,230,440.08
  5. Step 5: Solve for x
    x = 4,066,230,440.08/72,868.08
  6. Step 6: Final answer
    x = 55,802.63

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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.