Home / 75,939.44-104,777.56-65,851.76

Finding the Fourth Proportional to 75,939.44, 104,777.56 and 65,851.76

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Solution

The fourth proportional to 75,939.44, 104,777.56 and 65,851.76 is: 90,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,939.44 : 104,777.56 = 65,851.76 : x
  2. Step 2: Convert to fraction form
    75,939.44/104,777.56 = 65,851.76/x
  3. Step 3: Cross multiply
    75,939.44x = 104,777.56 × 65,851.76
  4. Step 4: Simplify right side
    75,939.44x = 6,899,786,734.51
  5. Step 5: Solve for x
    x = 6,899,786,734.51/75,939.44
  6. Step 6: Final answer
    x = 90,859.07

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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.