Home / 41,289.12-61,889.40-31,403.88

Finding the Fourth Proportional to 41,289.12, 61,889.40 and 31,403.88

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Solution

The fourth proportional to 41,289.12, 61,889.40 and 31,403.88 is: 47,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,289.12 : 61,889.40 = 31,403.88 : x
  2. Step 2: Convert to fraction form
    41,289.12/61,889.40 = 31,403.88/x
  3. Step 3: Cross multiply
    41,289.12x = 61,889.40 × 31,403.88
  4. Step 4: Simplify right side
    41,289.12x = 1,943,567,290.87
  5. Step 5: Solve for x
    x = 1,943,567,290.87/41,289.12
  6. Step 6: Final answer
    x = 47,072.14

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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.