Home / 51,382.13-77,116.94-20,239.25

Finding the Fourth Proportional to 51,382.13, 77,116.94 and 20,239.25

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Solution

The fourth proportional to 51,382.13, 77,116.94 and 20,239.25 is: 30,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,382.13 : 77,116.94 = 20,239.25 : x
  2. Step 2: Convert to fraction form
    51,382.13/77,116.94 = 20,239.25/x
  3. Step 3: Cross multiply
    51,382.13x = 77,116.94 × 20,239.25
  4. Step 4: Simplify right side
    51,382.13x = 1,560,788,926.70
  5. Step 5: Solve for x
    x = 1,560,788,926.70/51,382.13
  6. Step 6: Final answer
    x = 30,376.10

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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.