Home / 71,974.98-107,964.90-40,383.36

Finding the Fourth Proportional to 71,974.98, 107,964.90 and 40,383.36

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Solution

The fourth proportional to 71,974.98, 107,964.90 and 40,383.36 is: 60,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,974.98 : 107,964.90 = 40,383.36 : x
  2. Step 2: Convert to fraction form
    71,974.98/107,964.90 = 40,383.36/x
  3. Step 3: Cross multiply
    71,974.98x = 107,964.90 × 40,383.36
  4. Step 4: Simplify right side
    71,974.98x = 4,359,985,424.06
  5. Step 5: Solve for x
    x = 4,359,985,424.06/71,974.98
  6. Step 6: Final answer
    x = 60,576.40

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1.5x scale

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.