Home / 49,904.78-74,880.54-21,821.22

Finding the Fourth Proportional to 49,904.78, 74,880.54 and 21,821.22

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Solution

The fourth proportional to 49,904.78, 74,880.54 and 21,821.22 is: 32,742.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,904.78 : 74,880.54 = 21,821.22 : x
  2. Step 2: Convert to fraction form
    49,904.78/74,880.54 = 21,821.22/x
  3. Step 3: Cross multiply
    49,904.78x = 74,880.54 × 21,821.22
  4. Step 4: Simplify right side
    49,904.78x = 1,633,984,737.06
  5. Step 5: Solve for x
    x = 1,633,984,737.06/49,904.78
  6. Step 6: Final answer
    x = 32,742.05

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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.