Home / 47,131.88-70,696.20-12,071.84

Finding the Fourth Proportional to 47,131.88, 70,696.20 and 12,071.84

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Solution

The fourth proportional to 47,131.88, 70,696.20 and 12,071.84 is: 18,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,131.88 : 70,696.20 = 12,071.84 : x
  2. Step 2: Convert to fraction form
    47,131.88/70,696.20 = 12,071.84/x
  3. Step 3: Cross multiply
    47,131.88x = 70,696.20 × 12,071.84
  4. Step 4: Simplify right side
    47,131.88x = 853,433,215.01
  5. Step 5: Solve for x
    x = 853,433,215.01/47,131.88
  6. Step 6: Final answer
    x = 18,107.35

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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.