Home / 53,921.84-74,412.43-31,274.25

Finding the Fourth Proportional to 53,921.84, 74,412.43 and 31,274.25

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Solution

The fourth proportional to 53,921.84, 74,412.43 and 31,274.25 is: 43,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,921.84 : 74,412.43 = 31,274.25 : x
  2. Step 2: Convert to fraction form
    53,921.84/74,412.43 = 31,274.25/x
  3. Step 3: Cross multiply
    53,921.84x = 74,412.43 × 31,274.25
  4. Step 4: Simplify right side
    53,921.84x = 2,327,192,938.93
  5. Step 5: Solve for x
    x = 2,327,192,938.93/53,921.84
  6. Step 6: Final answer
    x = 43,158.63

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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.