Home / 53,982.88-74,505.48-39,876.64

Finding the Fourth Proportional to 53,982.88, 74,505.48 and 39,876.64

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Solution

The fourth proportional to 53,982.88, 74,505.48 and 39,876.64 is: 55,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,982.88 : 74,505.48 = 39,876.64 : x
  2. Step 2: Convert to fraction form
    53,982.88/74,505.48 = 39,876.64/x
  3. Step 3: Cross multiply
    53,982.88x = 74,505.48 × 39,876.64
  4. Step 4: Simplify right side
    53,982.88x = 2,971,028,203.99
  5. Step 5: Solve for x
    x = 2,971,028,203.99/53,982.88
  6. Step 6: Final answer
    x = 55,036.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.