Home / 57,004.25-78,664.48-31,161.65

Finding the Fourth Proportional to 57,004.25, 78,664.48 and 31,161.65

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Solution

The fourth proportional to 57,004.25, 78,664.48 and 31,161.65 is: 43,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004.25 : 78,664.48 = 31,161.65 : x
  2. Step 2: Convert to fraction form
    57,004.25/78,664.48 = 31,161.65/x
  3. Step 3: Cross multiply
    57,004.25x = 78,664.48 × 31,161.65
  4. Step 4: Simplify right side
    57,004.25x = 2,451,314,993.19
  5. Step 5: Solve for x
    x = 2,451,314,993.19/57,004.25
  6. Step 6: Final answer
    x = 43,002.32

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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.