Home / 53,719.51-74,128.59-31,059.97

Finding the Fourth Proportional to 53,719.51, 74,128.59 and 31,059.97

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Solution

The fourth proportional to 53,719.51, 74,128.59 and 31,059.97 is: 42,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,719.51 : 74,128.59 = 31,059.97 : x
  2. Step 2: Convert to fraction form
    53,719.51/74,128.59 = 31,059.97/x
  3. Step 3: Cross multiply
    53,719.51x = 74,128.59 × 31,059.97
  4. Step 4: Simplify right side
    53,719.51x = 2,302,431,781.54
  5. Step 5: Solve for x
    x = 2,302,431,781.54/53,719.51
  6. Step 6: Final answer
    x = 42,860.25

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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.