Home / 67,219.27-100,828.92-20,472.16

Finding the Fourth Proportional to 67,219.27, 100,828.92 and 20,472.16

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Solution

The fourth proportional to 67,219.27, 100,828.92 and 20,472.16 is: 30,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,219.27 : 100,828.92 = 20,472.16 : x
  2. Step 2: Convert to fraction form
    67,219.27/100,828.92 = 20,472.16/x
  3. Step 3: Cross multiply
    67,219.27x = 100,828.92 × 20,472.16
  4. Step 4: Simplify right side
    67,219.27x = 2,064,185,782.87
  5. Step 5: Solve for x
    x = 2,064,185,782.87/67,219.27
  6. Step 6: Final answer
    x = 30,708.24

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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.