Home / 57,140.40-78,858.63-33,274.56

Finding the Fourth Proportional to 57,140.40, 78,858.63 and 33,274.56

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Solution

The fourth proportional to 57,140.40, 78,858.63 and 33,274.56 is: 45,921.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.40 : 78,858.63 = 33,274.56 : x
  2. Step 2: Convert to fraction form
    57,140.40/78,858.63 = 33,274.56/x
  3. Step 3: Cross multiply
    57,140.40x = 78,858.63 × 33,274.56
  4. Step 4: Simplify right side
    57,140.40x = 2,623,986,215.45
  5. Step 5: Solve for x
    x = 2,623,986,215.45/57,140.40
  6. Step 6: Final answer
    x = 45,921.73

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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.