Home / 67,601.32-101,391.10-20,215.72

Finding the Fourth Proportional to 67,601.32, 101,391.10 and 20,215.72

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Solution

The fourth proportional to 67,601.32, 101,391.10 and 20,215.72 is: 30,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,601.32 : 101,391.10 = 20,215.72 : x
  2. Step 2: Convert to fraction form
    67,601.32/101,391.10 = 20,215.72/x
  3. Step 3: Cross multiply
    67,601.32x = 101,391.10 × 20,215.72
  4. Step 4: Simplify right side
    67,601.32x = 2,049,694,088.09
  5. Step 5: Solve for x
    x = 2,049,694,088.09/67,601.32
  6. Step 6: Final answer
    x = 30,320.33

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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.