Home / 62,811.32-94,231.55-20,689.89

Finding the Fourth Proportional to 62,811.32, 94,231.55 and 20,689.89

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Solution

The fourth proportional to 62,811.32, 94,231.55 and 20,689.89 is: 31,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,811.32 : 94,231.55 = 20,689.89 : x
  2. Step 2: Convert to fraction form
    62,811.32/94,231.55 = 20,689.89/x
  3. Step 3: Cross multiply
    62,811.32x = 94,231.55 × 20,689.89
  4. Step 4: Simplify right side
    62,811.32x = 1,949,639,986.01
  5. Step 5: Solve for x
    x = 1,949,639,986.01/62,811.32
  6. Step 6: Final answer
    x = 31,039.63

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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.