Home / 63,673.17-87,869.39-39,813.81

Finding the Fourth Proportional to 63,673.17, 87,869.39 and 39,813.81

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Solution

The fourth proportional to 63,673.17, 87,869.39 and 39,813.81 is: 54,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,673.17 : 87,869.39 = 39,813.81 : x
  2. Step 2: Convert to fraction form
    63,673.17/87,869.39 = 39,813.81/x
  3. Step 3: Cross multiply
    63,673.17x = 87,869.39 × 39,813.81
  4. Step 4: Simplify right side
    63,673.17x = 3,498,414,893.65
  5. Step 5: Solve for x
    x = 3,498,414,893.65/63,673.17
  6. Step 6: Final answer
    x = 54,943.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.