Home / 49,639.89-74,465.28-21,540.63

Finding the Fourth Proportional to 49,639.89, 74,465.28 and 21,540.63

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Solution

The fourth proportional to 49,639.89, 74,465.28 and 21,540.63 is: 32,313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,639.89 : 74,465.28 = 21,540.63 : x
  2. Step 2: Convert to fraction form
    49,639.89/74,465.28 = 21,540.63/x
  3. Step 3: Cross multiply
    49,639.89x = 74,465.28 × 21,540.63
  4. Step 4: Simplify right side
    49,639.89x = 1,604,029,044.33
  5. Step 5: Solve for x
    x = 1,604,029,044.33/49,639.89
  6. Step 6: Final answer
    x = 32,313.31

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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.