Home / 77,838.93-107,411.34-43,836.57

Finding the Fourth Proportional to 77,838.93, 107,411.34 and 43,836.57

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Solution

The fourth proportional to 77,838.93, 107,411.34 and 43,836.57 is: 60,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,838.93 : 107,411.34 = 43,836.57 : x
  2. Step 2: Convert to fraction form
    77,838.93/107,411.34 = 43,836.57/x
  3. Step 3: Cross multiply
    77,838.93x = 107,411.34 × 43,836.57
  4. Step 4: Simplify right side
    77,838.93x = 4,708,544,724.70
  5. Step 5: Solve for x
    x = 4,708,544,724.70/77,838.93
  6. Step 6: Final answer
    x = 60,490.87

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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.