Home / 77,977.95-107,609.46-43,986.33

Finding the Fourth Proportional to 77,977.95, 107,609.46 and 43,986.33

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Solution

The fourth proportional to 77,977.95, 107,609.46 and 43,986.33 is: 60,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,977.95 : 107,609.46 = 43,986.33 : x
  2. Step 2: Convert to fraction form
    77,977.95/107,609.46 = 43,986.33/x
  3. Step 3: Cross multiply
    77,977.95x = 107,609.46 × 43,986.33
  4. Step 4: Simplify right side
    77,977.95x = 4,733,345,218.68
  5. Step 5: Solve for x
    x = 4,733,345,218.68/77,977.95
  6. Step 6: Final answer
    x = 60,701.07

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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.