Home / 77,838.94-107,411.36-43,836.56

Finding the Fourth Proportional to 77,838.94, 107,411.36 and 43,836.56

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Solution

The fourth proportional to 77,838.94, 107,411.36 and 43,836.56 is: 60,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,838.94 : 107,411.36 = 43,836.56 : x
  2. Step 2: Convert to fraction form
    77,838.94/107,411.36 = 43,836.56/x
  3. Step 3: Cross multiply
    77,838.94x = 107,411.36 × 43,836.56
  4. Step 4: Simplify right side
    77,838.94x = 4,708,543,771.08
  5. Step 5: Solve for x
    x = 4,708,543,771.08/77,838.94
  6. Step 6: Final answer
    x = 60,490.85

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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.