Home / 77,664.80-107,114.64-52,163.48

Finding the Fourth Proportional to 77,664.80, 107,114.64 and 52,163.48

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Solution

The fourth proportional to 77,664.80, 107,114.64 and 52,163.48 is: 71,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,664.80 : 107,114.64 = 52,163.48 : x
  2. Step 2: Convert to fraction form
    77,664.80/107,114.64 = 52,163.48/x
  3. Step 3: Cross multiply
    77,664.80x = 107,114.64 × 52,163.48
  4. Step 4: Simplify right side
    77,664.80x = 5,587,472,381.35
  5. Step 5: Solve for x
    x = 5,587,472,381.35/77,664.80
  6. Step 6: Final answer
    x = 71,943.43

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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.