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Finding the Fourth Proportional to 48,997.60, 73,460.40 and 19,400.80

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Solution

The fourth proportional to 48,997.60, 73,460.40 and 19,400.80 is: 29,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,997.60 : 73,460.40 = 19,400.80 : x
  2. Step 2: Convert to fraction form
    48,997.60/73,460.40 = 19,400.80/x
  3. Step 3: Cross multiply
    48,997.60x = 73,460.40 × 19,400.80
  4. Step 4: Simplify right side
    48,997.60x = 1,425,190,528.32
  5. Step 5: Solve for x
    x = 1,425,190,528.32/48,997.60
  6. Step 6: Final answer
    x = 29,086.95

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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.