Home / 80,953.09-111,685.74-50,739.68

Finding the Fourth Proportional to 80,953.09, 111,685.74 and 50,739.68

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Solution

The fourth proportional to 80,953.09, 111,685.74 and 50,739.68 is: 70,002.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.09 : 111,685.74 = 50,739.68 : x
  2. Step 2: Convert to fraction form
    80,953.09/111,685.74 = 50,739.68/x
  3. Step 3: Cross multiply
    80,953.09x = 111,685.74 × 50,739.68
  4. Step 4: Simplify right side
    80,953.09x = 5,666,898,797.10
  5. Step 5: Solve for x
    x = 5,666,898,797.10/80,953.09
  6. Step 6: Final answer
    x = 70,002.26

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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.