Home / 36,219.20-54,328.80-31,359.20

Finding the Fourth Proportional to 36,219.20, 54,328.80 and 31,359.20

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Solution

The fourth proportional to 36,219.20, 54,328.80 and 31,359.20 is: 47,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219.20 : 54,328.80 = 31,359.20 : x
  2. Step 2: Convert to fraction form
    36,219.20/54,328.80 = 31,359.20/x
  3. Step 3: Cross multiply
    36,219.20x = 54,328.80 × 31,359.20
  4. Step 4: Simplify right side
    36,219.20x = 1,703,707,704.96
  5. Step 5: Solve for x
    x = 1,703,707,704.96/36,219.20
  6. Step 6: Final answer
    x = 47,038.80

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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.