Home / 77,021.28-115,538.40-27,096.12

Finding the Fourth Proportional to 77,021.28, 115,538.40 and 27,096.12

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Solution

The fourth proportional to 77,021.28, 115,538.40 and 27,096.12 is: 40,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,021.28 : 115,538.40 = 27,096.12 : x
  2. Step 2: Convert to fraction form
    77,021.28/115,538.40 = 27,096.12/x
  3. Step 3: Cross multiply
    77,021.28x = 115,538.40 × 27,096.12
  4. Step 4: Simplify right side
    77,021.28x = 3,130,642,351.01
  5. Step 5: Solve for x
    x = 3,130,642,351.01/77,021.28
  6. Step 6: Final answer
    x = 40,646.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.