Home / 53,787.76-74,216.20-31,427.44

Finding the Fourth Proportional to 53,787.76, 74,216.20 and 31,427.44

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Solution

The fourth proportional to 53,787.76, 74,216.20 and 31,427.44 is: 43,363.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,787.76 : 74,216.20 = 31,427.44 : x
  2. Step 2: Convert to fraction form
    53,787.76/74,216.20 = 31,427.44/x
  3. Step 3: Cross multiply
    53,787.76x = 74,216.20 × 31,427.44
  4. Step 4: Simplify right side
    53,787.76x = 2,332,425,172.53
  5. Step 5: Solve for x
    x = 2,332,425,172.53/53,787.76
  6. Step 6: Final answer
    x = 43,363.49

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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.