Home / 51,867-71,572.20-29,198.76

Finding the Fourth Proportional to 51,867, 71,572.20 and 29,198.76

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Solution

The fourth proportional to 51,867, 71,572.20 and 29,198.76 is: 40,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,867 : 71,572.20 = 29,198.76 : x
  2. Step 2: Convert to fraction form
    51,867/71,572.20 = 29,198.76/x
  3. Step 3: Cross multiply
    51,867x = 71,572.20 × 29,198.76
  4. Step 4: Simplify right side
    51,867x = 2,089,819,490.47
  5. Step 5: Solve for x
    x = 2,089,819,490.47/51,867
  6. Step 6: Final answer
    x = 40,291.89

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1.5x scale

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.