Home / 51,955.49-77,914.10-18,666.65

Finding the Fourth Proportional to 51,955.49, 77,914.10 and 18,666.65

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Solution

The fourth proportional to 51,955.49, 77,914.10 and 18,666.65 is: 27,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,955.49 : 77,914.10 = 18,666.65 : x
  2. Step 2: Convert to fraction form
    51,955.49/77,914.10 = 18,666.65/x
  3. Step 3: Cross multiply
    51,955.49x = 77,914.10 × 18,666.65
  4. Step 4: Simplify right side
    51,955.49x = 1,454,395,476.22
  5. Step 5: Solve for x
    x = 1,454,395,476.22/51,955.49
  6. Step 6: Final answer
    x = 27,993.10

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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.