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Finding the Fourth Proportional to 67,224.87, 100,820.57 and 20,477.07

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Solution

The fourth proportional to 67,224.87, 100,820.57 and 20,477.07 is: 30,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,224.87 : 100,820.57 = 20,477.07 : x
  2. Step 2: Convert to fraction form
    67,224.87/100,820.57 = 20,477.07/x
  3. Step 3: Cross multiply
    67,224.87x = 100,820.57 × 20,477.07
  4. Step 4: Simplify right side
    67,224.87x = 2,064,509,766.94
  5. Step 5: Solve for x
    x = 2,064,509,766.94/67,224.87
  6. Step 6: Final answer
    x = 30,710.51

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1.5x scale

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.