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Finding the Fourth Proportional to 47,998.70, 71,998.05 and 42,944.30

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Solution

The fourth proportional to 47,998.70, 71,998.05 and 42,944.30 is: 64,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,998.70 : 71,998.05 = 42,944.30 : x
  2. Step 2: Convert to fraction form
    47,998.70/71,998.05 = 42,944.30/x
  3. Step 3: Cross multiply
    47,998.70x = 71,998.05 × 42,944.30
  4. Step 4: Simplify right side
    47,998.70x = 3,091,905,858.62
  5. Step 5: Solve for x
    x = 3,091,905,858.62/47,998.70
  6. Step 6: Final answer
    x = 64,416.45

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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.