Home / 49,379.87-74,053.35-21,282.38

Finding the Fourth Proportional to 49,379.87, 74,053.35 and 21,282.38

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Solution

The fourth proportional to 49,379.87, 74,053.35 and 21,282.38 is: 31,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,379.87 : 74,053.35 = 21,282.38 : x
  2. Step 2: Convert to fraction form
    49,379.87/74,053.35 = 21,282.38/x
  3. Step 3: Cross multiply
    49,379.87x = 74,053.35 × 21,282.38
  4. Step 4: Simplify right side
    49,379.87x = 1,576,031,164.71
  5. Step 5: Solve for x
    x = 1,576,031,164.71/49,379.87
  6. Step 6: Final answer
    x = 31,916.47

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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.