Home / 49,400.78-74,048.07-21,334.10

Finding the Fourth Proportional to 49,400.78, 74,048.07 and 21,334.10

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Solution

The fourth proportional to 49,400.78, 74,048.07 and 21,334.10 is: 31,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,400.78 : 74,048.07 = 21,334.10 : x
  2. Step 2: Convert to fraction form
    49,400.78/74,048.07 = 21,334.10/x
  3. Step 3: Cross multiply
    49,400.78x = 74,048.07 × 21,334.10
  4. Step 4: Simplify right side
    49,400.78x = 1,579,748,930.19
  5. Step 5: Solve for x
    x = 1,579,748,930.19/49,400.78
  6. Step 6: Final answer
    x = 31,978.22

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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.