Home / 51,817.09-77,706.60-18,528.13

Finding the Fourth Proportional to 51,817.09, 77,706.60 and 18,528.13

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Solution

The fourth proportional to 51,817.09, 77,706.60 and 18,528.13 is: 27,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,817.09 : 77,706.60 = 18,528.13 : x
  2. Step 2: Convert to fraction form
    51,817.09/77,706.60 = 18,528.13/x
  3. Step 3: Cross multiply
    51,817.09x = 77,706.60 × 18,528.13
  4. Step 4: Simplify right side
    51,817.09x = 1,439,757,986.66
  5. Step 5: Solve for x
    x = 1,439,757,986.66/51,817.09
  6. Step 6: Final answer
    x = 27,785.39

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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.