Home / 49,406.28-74,056.32-21,339.60

Finding the Fourth Proportional to 49,406.28, 74,056.32 and 21,339.60

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Solution

The fourth proportional to 49,406.28, 74,056.32 and 21,339.60 is: 31,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,406.28 : 74,056.32 = 21,339.60 : x
  2. Step 2: Convert to fraction form
    49,406.28/74,056.32 = 21,339.60/x
  3. Step 3: Cross multiply
    49,406.28x = 74,056.32 × 21,339.60
  4. Step 4: Simplify right side
    49,406.28x = 1,580,332,246.27
  5. Step 5: Solve for x
    x = 1,580,332,246.27/49,406.28
  6. Step 6: Final answer
    x = 31,986.47

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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.