Home / 45,391.34-68,059.24-18,729.06

Finding the Fourth Proportional to 45,391.34, 68,059.24 and 18,729.06

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Solution

The fourth proportional to 45,391.34, 68,059.24 and 18,729.06 is: 28,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.34 : 68,059.24 = 18,729.06 : x
  2. Step 2: Convert to fraction form
    45,391.34/68,059.24 = 18,729.06/x
  3. Step 3: Cross multiply
    45,391.34x = 68,059.24 × 18,729.06
  4. Step 4: Simplify right side
    45,391.34x = 1,274,685,589.51
  5. Step 5: Solve for x
    x = 1,274,685,589.51/45,391.34
  6. Step 6: Final answer
    x = 28,082.13

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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.