Home / 43,729.71-65,599.25-12,139.91

Finding the Fourth Proportional to 43,729.71, 65,599.25 and 12,139.91

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Solution

The fourth proportional to 43,729.71, 65,599.25 and 12,139.91 is: 18,211.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,729.71 : 65,599.25 = 12,139.91 : x
  2. Step 2: Convert to fraction form
    43,729.71/65,599.25 = 12,139.91/x
  3. Step 3: Cross multiply
    43,729.71x = 65,599.25 × 12,139.91
  4. Step 4: Simplify right side
    43,729.71x = 796,368,602.37
  5. Step 5: Solve for x
    x = 796,368,602.37/43,729.71
  6. Step 6: Final answer
    x = 18,211.16

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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.