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Finding the Fourth Proportional to 77,797.80, 107,356.59 and 45,969.66

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Solution

The fourth proportional to 77,797.80, 107,356.59 and 45,969.66 is: 63,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,797.80 : 107,356.59 = 45,969.66 : x
  2. Step 2: Convert to fraction form
    77,797.80/107,356.59 = 45,969.66/x
  3. Step 3: Cross multiply
    77,797.80x = 107,356.59 × 45,969.66
  4. Step 4: Simplify right side
    77,797.80x = 4,935,145,941.06
  5. Step 5: Solve for x
    x = 4,935,145,941.06/77,797.80
  6. Step 6: Final answer
    x = 63,435.55

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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.