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Finding the Fourth Proportional to 49,400.60, 74,064.90 and 19,803.80

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Solution

The fourth proportional to 49,400.60, 74,064.90 and 19,803.80 is: 29,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,400.60 : 74,064.90 = 19,803.80 : x
  2. Step 2: Convert to fraction form
    49,400.60/74,064.90 = 19,803.80/x
  3. Step 3: Cross multiply
    49,400.60x = 74,064.90 × 19,803.80
  4. Step 4: Simplify right side
    49,400.60x = 1,466,766,466.62
  5. Step 5: Solve for x
    x = 1,466,766,466.62/49,400.60
  6. Step 6: Final answer
    x = 29,691.27

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1.5x scale

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.