Home / 57,278.10-79,032.60-33,405.78

Finding the Fourth Proportional to 57,278.10, 79,032.60 and 33,405.78

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Solution

The fourth proportional to 57,278.10, 79,032.60 and 33,405.78 is: 46,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,278.10 : 79,032.60 = 33,405.78 : x
  2. Step 2: Convert to fraction form
    57,278.10/79,032.60 = 33,405.78/x
  3. Step 3: Cross multiply
    57,278.10x = 79,032.60 × 33,405.78
  4. Step 4: Simplify right side
    57,278.10x = 2,640,145,648.43
  5. Step 5: Solve for x
    x = 2,640,145,648.43/57,278.10
  6. Step 6: Final answer
    x = 46,093.46

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1.5x scale

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.