Home / 45,391.18-68,087.27-13,806.38

Finding the Fourth Proportional to 45,391.18, 68,087.27 and 13,806.38

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Solution

The fourth proportional to 45,391.18, 68,087.27 and 13,806.38 is: 20,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.18 : 68,087.27 = 13,806.38 : x
  2. Step 2: Convert to fraction form
    45,391.18/68,087.27 = 13,806.38/x
  3. Step 3: Cross multiply
    45,391.18x = 68,087.27 × 13,806.38
  4. Step 4: Simplify right side
    45,391.18x = 940,038,722.78
  5. Step 5: Solve for x
    x = 940,038,722.78/45,391.18
  6. Step 6: Final answer
    x = 20,709.72

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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.