Home / 47,390.46-71,085.78-12,330.06

Finding the Fourth Proportional to 47,390.46, 71,085.78 and 12,330.06

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Solution

The fourth proportional to 47,390.46, 71,085.78 and 12,330.06 is: 18,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,390.46 : 71,085.78 = 12,330.06 : x
  2. Step 2: Convert to fraction form
    47,390.46/71,085.78 = 12,330.06/x
  3. Step 3: Cross multiply
    47,390.46x = 71,085.78 × 12,330.06
  4. Step 4: Simplify right side
    47,390.46x = 876,491,932.55
  5. Step 5: Solve for x
    x = 876,491,932.55/47,390.46
  6. Step 6: Final answer
    x = 18,495.11

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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.