Home / 51,501.36-71,103.99-39,540.90

Finding the Fourth Proportional to 51,501.36, 71,103.99 and 39,540.90

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Solution

The fourth proportional to 51,501.36, 71,103.99 and 39,540.90 is: 54,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,501.36 : 71,103.99 = 39,540.90 : x
  2. Step 2: Convert to fraction form
    51,501.36/71,103.99 = 39,540.90/x
  3. Step 3: Cross multiply
    51,501.36x = 71,103.99 × 39,540.90
  4. Step 4: Simplify right side
    51,501.36x = 2,811,515,758.19
  5. Step 5: Solve for x
    x = 2,811,515,758.19/51,501.36
  6. Step 6: Final answer
    x = 54,591.10

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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.