Home / 67,018.51-92,517.03-38,718.73

Finding the Fourth Proportional to 67,018.51, 92,517.03 and 38,718.73

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Solution

The fourth proportional to 67,018.51, 92,517.03 and 38,718.73 is: 53,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,018.51 : 92,517.03 = 38,718.73 : x
  2. Step 2: Convert to fraction form
    67,018.51/92,517.03 = 38,718.73/x
  3. Step 3: Cross multiply
    67,018.51x = 92,517.03 × 38,718.73
  4. Step 4: Simplify right side
    67,018.51x = 3,582,141,904.97
  5. Step 5: Solve for x
    x = 3,582,141,904.97/67,018.51
  6. Step 6: Final answer
    x = 53,450.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.