Home / 53,913.76-74,401.16-31,257.20

Finding the Fourth Proportional to 53,913.76, 74,401.16 and 31,257.20

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Solution

The fourth proportional to 53,913.76, 74,401.16 and 31,257.20 is: 43,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,913.76 : 74,401.16 = 31,257.20 : x
  2. Step 2: Convert to fraction form
    53,913.76/74,401.16 = 31,257.20/x
  3. Step 3: Cross multiply
    53,913.76x = 74,401.16 × 31,257.20
  4. Step 4: Simplify right side
    53,913.76x = 2,325,571,938.35
  5. Step 5: Solve for x
    x = 2,325,571,938.35/53,913.76
  6. Step 6: Final answer
    x = 43,135.04

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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.