Home / 45,268.67-67,904.39-21,578.81

Finding the Fourth Proportional to 45,268.67, 67,904.39 and 21,578.81

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Solution

The fourth proportional to 45,268.67, 67,904.39 and 21,578.81 is: 32,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,268.67 : 67,904.39 = 21,578.81 : x
  2. Step 2: Convert to fraction form
    45,268.67/67,904.39 = 21,578.81/x
  3. Step 3: Cross multiply
    45,268.67x = 67,904.39 × 21,578.81
  4. Step 4: Simplify right side
    45,268.67x = 1,465,295,644.40
  5. Step 5: Solve for x
    x = 1,465,295,644.40/45,268.67
  6. Step 6: Final answer
    x = 32,368.87

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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.