Home / 57,015.26-78,685.90-33,140.41

Finding the Fourth Proportional to 57,015.26, 78,685.90 and 33,140.41

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Solution

The fourth proportional to 57,015.26, 78,685.90 and 33,140.41 is: 45,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,015.26 : 78,685.90 = 33,140.41 : x
  2. Step 2: Convert to fraction form
    57,015.26/78,685.90 = 33,140.41/x
  3. Step 3: Cross multiply
    57,015.26x = 78,685.90 × 33,140.41
  4. Step 4: Simplify right side
    57,015.26x = 2,607,682,707.65
  5. Step 5: Solve for x
    x = 2,607,682,707.65/57,015.26
  6. Step 6: Final answer
    x = 45,736.58

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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.