Home / 55,085.20-76,017.37-31,216.44

Finding the Fourth Proportional to 55,085.20, 76,017.37 and 31,216.44

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Solution

The fourth proportional to 55,085.20, 76,017.37 and 31,216.44 is: 43,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,085.20 : 76,017.37 = 31,216.44 : x
  2. Step 2: Convert to fraction form
    55,085.20/76,017.37 = 31,216.44/x
  3. Step 3: Cross multiply
    55,085.20x = 76,017.37 × 31,216.44
  4. Step 4: Simplify right side
    55,085.20x = 2,372,991,669.56
  5. Step 5: Solve for x
    x = 2,372,991,669.56/55,085.20
  6. Step 6: Final answer
    x = 43,078.57

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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.