Home / 51,384.56-77,087.16-18,128.18

Finding the Fourth Proportional to 51,384.56, 77,087.16 and 18,128.18

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Solution

The fourth proportional to 51,384.56, 77,087.16 and 18,128.18 is: 27,195.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.56 : 77,087.16 = 18,128.18 : x
  2. Step 2: Convert to fraction form
    51,384.56/77,087.16 = 18,128.18/x
  3. Step 3: Cross multiply
    51,384.56x = 77,087.16 × 18,128.18
  4. Step 4: Simplify right side
    51,384.56x = 1,397,450,104.89
  5. Step 5: Solve for x
    x = 1,397,450,104.89/51,384.56
  6. Step 6: Final answer
    x = 27,195.92

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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.