Home / 49,661.60-74,456.40-20,064.80

Finding the Fourth Proportional to 49,661.60, 74,456.40 and 20,064.80

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Solution

The fourth proportional to 49,661.60, 74,456.40 and 20,064.80 is: 30,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,661.60 : 74,456.40 = 20,064.80 : x
  2. Step 2: Convert to fraction form
    49,661.60/74,456.40 = 20,064.80/x
  3. Step 3: Cross multiply
    49,661.60x = 74,456.40 × 20,064.80
  4. Step 4: Simplify right side
    49,661.60x = 1,493,952,774.72
  5. Step 5: Solve for x
    x = 1,493,952,774.72/49,661.60
  6. Step 6: Final answer
    x = 30,082.65

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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.