Home / 51,203.20-76,853.40-31,520.20

Finding the Fourth Proportional to 51,203.20, 76,853.40 and 31,520.20

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Solution

The fourth proportional to 51,203.20, 76,853.40 and 31,520.20 is: 47,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,203.20 : 76,853.40 = 31,520.20 : x
  2. Step 2: Convert to fraction form
    51,203.20/76,853.40 = 31,520.20/x
  3. Step 3: Cross multiply
    51,203.20x = 76,853.40 × 31,520.20
  4. Step 4: Simplify right side
    51,203.20x = 2,422,434,538.68
  5. Step 5: Solve for x
    x = 2,422,434,538.68/51,203.20
  6. Step 6: Final answer
    x = 47,310.22

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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.