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Finding the Fourth Proportional to 77,504.64, 106,932.84 and 45,661.92

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Solution

The fourth proportional to 77,504.64, 106,932.84 and 45,661.92 is: 62,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,504.64 : 106,932.84 = 45,661.92 : x
  2. Step 2: Convert to fraction form
    77,504.64/106,932.84 = 45,661.92/x
  3. Step 3: Cross multiply
    77,504.64x = 106,932.84 × 45,661.92
  4. Step 4: Simplify right side
    77,504.64x = 4,882,758,785.45
  5. Step 5: Solve for x
    x = 4,882,758,785.45/77,504.64
  6. Step 6: Final answer
    x = 62,999.57

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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.