Home / 51,988.43-77,993.18-16,918.67

Finding the Fourth Proportional to 51,988.43, 77,993.18 and 16,918.67

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Solution

The fourth proportional to 51,988.43, 77,993.18 and 16,918.67 is: 25,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.43 : 77,993.18 = 16,918.67 : x
  2. Step 2: Convert to fraction form
    51,988.43/77,993.18 = 16,918.67/x
  3. Step 3: Cross multiply
    51,988.43x = 77,993.18 × 16,918.67
  4. Step 4: Simplify right side
    51,988.43x = 1,319,540,790.08
  5. Step 5: Solve for x
    x = 1,319,540,790.08/51,988.43
  6. Step 6: Final answer
    x = 25,381.43

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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.