Home / 40,729.54-61,103.87-12,648.14

Finding the Fourth Proportional to 40,729.54, 61,103.87 and 12,648.14

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Solution

The fourth proportional to 40,729.54, 61,103.87 and 12,648.14 is: 18,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.54 : 61,103.87 = 12,648.14 : x
  2. Step 2: Convert to fraction form
    40,729.54/61,103.87 = 12,648.14/x
  3. Step 3: Cross multiply
    40,729.54x = 61,103.87 × 12,648.14
  4. Step 4: Simplify right side
    40,729.54x = 772,850,302.30
  5. Step 5: Solve for x
    x = 772,850,302.30/40,729.54
  6. Step 6: Final answer
    x = 18,975.18

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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.