Home / 49,543.20-74,314.80-19,945.80

Finding the Fourth Proportional to 49,543.20, 74,314.80 and 19,945.80

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Solution

The fourth proportional to 49,543.20, 74,314.80 and 19,945.80 is: 29,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,543.20 : 74,314.80 = 19,945.80 : x
  2. Step 2: Convert to fraction form
    49,543.20/74,314.80 = 19,945.80/x
  3. Step 3: Cross multiply
    49,543.20x = 74,314.80 × 19,945.80
  4. Step 4: Simplify right side
    49,543.20x = 1,482,268,137.84
  5. Step 5: Solve for x
    x = 1,482,268,137.84/49,543.20
  6. Step 6: Final answer
    x = 29,918.70

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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.