Home / 51,478.26-71,046.70-28,825.88

Finding the Fourth Proportional to 51,478.26, 71,046.70 and 28,825.88

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Solution

The fourth proportional to 51,478.26, 71,046.70 and 28,825.88 is: 39,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.26 : 71,046.70 = 28,825.88 : x
  2. Step 2: Convert to fraction form
    51,478.26/71,046.70 = 28,825.88/x
  3. Step 3: Cross multiply
    51,478.26x = 71,046.70 × 28,825.88
  4. Step 4: Simplify right side
    51,478.26x = 2,047,983,648.60
  5. Step 5: Solve for x
    x = 2,047,983,648.60/51,478.26
  6. Step 6: Final answer
    x = 39,783.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.