Home / 49,639.39-74,464.53-21,540.13

Finding the Fourth Proportional to 49,639.39, 74,464.53 and 21,540.13

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Solution

The fourth proportional to 49,639.39, 74,464.53 and 21,540.13 is: 32,312.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,639.39 : 74,464.53 = 21,540.13 : x
  2. Step 2: Convert to fraction form
    49,639.39/74,464.53 = 21,540.13/x
  3. Step 3: Cross multiply
    49,639.39x = 74,464.53 × 21,540.13
  4. Step 4: Simplify right side
    49,639.39x = 1,603,975,656.59
  5. Step 5: Solve for x
    x = 1,603,975,656.59/49,639.39
  6. Step 6: Final answer
    x = 32,312.56

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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.