Home / 49,390.40-74,069.40-18,221.60

Finding the Fourth Proportional to 49,390.40, 74,069.40 and 18,221.60

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Solution

The fourth proportional to 49,390.40, 74,069.40 and 18,221.60 is: 27,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,390.40 : 74,069.40 = 18,221.60 : x
  2. Step 2: Convert to fraction form
    49,390.40/74,069.40 = 18,221.60/x
  3. Step 3: Cross multiply
    49,390.40x = 74,069.40 × 18,221.60
  4. Step 4: Simplify right side
    49,390.40x = 1,349,662,979.04
  5. Step 5: Solve for x
    x = 1,349,662,979.04/49,390.40
  6. Step 6: Final answer
    x = 27,326.42

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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.