Home / 53,918.79-80,755.16-47,612.06

Finding the Fourth Proportional to 53,918.79, 80,755.16 and 47,612.06

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Solution

The fourth proportional to 53,918.79, 80,755.16 and 47,612.06 is: 71,309.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,918.79 : 80,755.16 = 47,612.06 : x
  2. Step 2: Convert to fraction form
    53,918.79/80,755.16 = 47,612.06/x
  3. Step 3: Cross multiply
    53,918.79x = 80,755.16 × 47,612.06
  4. Step 4: Simplify right side
    53,918.79x = 3,844,919,844.15
  5. Step 5: Solve for x
    x = 3,844,919,844.15/53,918.79
  6. Step 6: Final answer
    x = 71,309.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.