Home / 51,568.68-77,358.42-21,989.64

Finding the Fourth Proportional to 51,568.68, 77,358.42 and 21,989.64

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Solution

The fourth proportional to 51,568.68, 77,358.42 and 21,989.64 is: 32,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,568.68 : 77,358.42 = 21,989.64 : x
  2. Step 2: Convert to fraction form
    51,568.68/77,358.42 = 21,989.64/x
  3. Step 3: Cross multiply
    51,568.68x = 77,358.42 × 21,989.64
  4. Step 4: Simplify right side
    51,568.68x = 1,701,083,806.77
  5. Step 5: Solve for x
    x = 1,701,083,806.77/51,568.68
  6. Step 6: Final answer
    x = 32,986.76

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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.