Home / 34,139.20-51,111.60-30,251.20

Finding the Fourth Proportional to 34,139.20, 51,111.60 and 30,251.20

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Solution

The fourth proportional to 34,139.20, 51,111.60 and 30,251.20 is: 45,290.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.20 : 51,111.60 = 30,251.20 : x
  2. Step 2: Convert to fraction form
    34,139.20/51,111.60 = 30,251.20/x
  3. Step 3: Cross multiply
    34,139.20x = 51,111.60 × 30,251.20
  4. Step 4: Simplify right side
    34,139.20x = 1,546,187,233.92
  5. Step 5: Solve for x
    x = 1,546,187,233.92/34,139.20
  6. Step 6: Final answer
    x = 45,290.67

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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.