Home / 40,537.31-55,942.40-25,430.61

Finding the Fourth Proportional to 40,537.31, 55,942.40 and 25,430.61

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Solution

The fourth proportional to 40,537.31, 55,942.40 and 25,430.61 is: 35,094.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,537.31 : 55,942.40 = 25,430.61 : x
  2. Step 2: Convert to fraction form
    40,537.31/55,942.40 = 25,430.61/x
  3. Step 3: Cross multiply
    40,537.31x = 55,942.40 × 25,430.61
  4. Step 4: Simplify right side
    40,537.31x = 1,422,649,172.50
  5. Step 5: Solve for x
    x = 1,422,649,172.50/40,537.31
  6. Step 6: Final answer
    x = 35,094.81

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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.