Home / 84,830.27-117,039.52-49,007.21

Finding the Fourth Proportional to 84,830.27, 117,039.52 and 49,007.21

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Solution

The fourth proportional to 84,830.27, 117,039.52 and 49,007.21 is: 67,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,830.27 : 117,039.52 = 49,007.21 : x
  2. Step 2: Convert to fraction form
    84,830.27/117,039.52 = 49,007.21/x
  3. Step 3: Cross multiply
    84,830.27x = 117,039.52 × 49,007.21
  4. Step 4: Simplify right side
    84,830.27x = 5,735,780,334.94
  5. Step 5: Solve for x
    x = 5,735,780,334.94/84,830.27
  6. Step 6: Final answer
    x = 67,614.78

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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.