Home / 57,913.76-86,734.56-28,238.56

Finding the Fourth Proportional to 57,913.76, 86,734.56 and 28,238.56

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Solution

The fourth proportional to 57,913.76, 86,734.56 and 28,238.56 is: 42,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,913.76 : 86,734.56 = 28,238.56 : x
  2. Step 2: Convert to fraction form
    57,913.76/86,734.56 = 28,238.56/x
  3. Step 3: Cross multiply
    57,913.76x = 86,734.56 × 28,238.56
  4. Step 4: Simplify right side
    57,913.76x = 2,449,259,076.63
  5. Step 5: Solve for x
    x = 2,449,259,076.63/57,913.76
  6. Step 6: Final answer
    x = 42,291.49

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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.