Home / 47,905.59-71,798.85-30,380.43

Finding the Fourth Proportional to 47,905.59, 71,798.85 and 30,380.43

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Solution

The fourth proportional to 47,905.59, 71,798.85 and 30,380.43 is: 45,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905.59 : 71,798.85 = 30,380.43 : x
  2. Step 2: Convert to fraction form
    47,905.59/71,798.85 = 30,380.43/x
  3. Step 3: Cross multiply
    47,905.59x = 71,798.85 × 30,380.43
  4. Step 4: Simplify right side
    47,905.59x = 2,181,279,936.51
  5. Step 5: Solve for x
    x = 2,181,279,936.51/47,905.59
  6. Step 6: Final answer
    x = 45,532.89

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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.