Home / 47,940.48-71,939.70-19,861.20

Finding the Fourth Proportional to 47,940.48, 71,939.70 and 19,861.20

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Solution

The fourth proportional to 47,940.48, 71,939.70 and 19,861.20 is: 29,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,940.48 : 71,939.70 = 19,861.20 : x
  2. Step 2: Convert to fraction form
    47,940.48/71,939.70 = 19,861.20/x
  3. Step 3: Cross multiply
    47,940.48x = 71,939.70 × 19,861.20
  4. Step 4: Simplify right side
    47,940.48x = 1,428,808,769.64
  5. Step 5: Solve for x
    x = 1,428,808,769.64/47,940.48
  6. Step 6: Final answer
    x = 29,803.81

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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.