Home / 53,930.88-74,424.86-31,283.28

Finding the Fourth Proportional to 53,930.88, 74,424.86 and 31,283.28

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Solution

The fourth proportional to 53,930.88, 74,424.86 and 31,283.28 is: 43,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,930.88 : 74,424.86 = 31,283.28 : x
  2. Step 2: Convert to fraction form
    53,930.88/74,424.86 = 31,283.28/x
  3. Step 3: Cross multiply
    53,930.88x = 74,424.86 × 31,283.28
  4. Step 4: Simplify right side
    53,930.88x = 2,328,253,734.34
  5. Step 5: Solve for x
    x = 2,328,253,734.34/53,930.88
  6. Step 6: Final answer
    x = 43,171.07

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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.