Home / 57,201.05-78,890.65-40,261.37

Finding the Fourth Proportional to 57,201.05, 78,890.65 and 40,261.37

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Solution

The fourth proportional to 57,201.05, 78,890.65 and 40,261.37 is: 55,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.05 : 78,890.65 = 40,261.37 : x
  2. Step 2: Convert to fraction form
    57,201.05/78,890.65 = 40,261.37/x
  3. Step 3: Cross multiply
    57,201.05x = 78,890.65 × 40,261.37
  4. Step 4: Simplify right side
    57,201.05x = 3,176,245,649.19
  5. Step 5: Solve for x
    x = 3,176,245,649.19/57,201.05
  6. Step 6: Final answer
    x = 55,527.75

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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.