Home / 35,846.20-53,769.30-30,143.80

Finding the Fourth Proportional to 35,846.20, 53,769.30 and 30,143.80

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Solution

The fourth proportional to 35,846.20, 53,769.30 and 30,143.80 is: 45,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,846.20 : 53,769.30 = 30,143.80 : x
  2. Step 2: Convert to fraction form
    35,846.20/53,769.30 = 30,143.80/x
  3. Step 3: Cross multiply
    35,846.20x = 53,769.30 × 30,143.80
  4. Step 4: Simplify right side
    35,846.20x = 1,620,811,025.34
  5. Step 5: Solve for x
    x = 1,620,811,025.34/35,846.20
  6. Step 6: Final answer
    x = 45,215.70

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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.