Home / 47,861.56-71,786.76-12,803.95

Finding the Fourth Proportional to 47,861.56, 71,786.76 and 12,803.95

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Solution

The fourth proportional to 47,861.56, 71,786.76 and 12,803.95 is: 19,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,861.56 : 71,786.76 = 12,803.95 : x
  2. Step 2: Convert to fraction form
    47,861.56/71,786.76 = 12,803.95/x
  3. Step 3: Cross multiply
    47,861.56x = 71,786.76 × 12,803.95
  4. Step 4: Simplify right side
    47,861.56x = 919,154,085.70
  5. Step 5: Solve for x
    x = 919,154,085.70/47,861.56
  6. Step 6: Final answer
    x = 19,204.43

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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.