Home / 56,815.62-78,359.54-49,994.91

Finding the Fourth Proportional to 56,815.62, 78,359.54 and 49,994.91

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Solution

The fourth proportional to 56,815.62, 78,359.54 and 49,994.91 is: 68,952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,815.62 : 78,359.54 = 49,994.91 : x
  2. Step 2: Convert to fraction form
    56,815.62/78,359.54 = 49,994.91/x
  3. Step 3: Cross multiply
    56,815.62x = 78,359.54 × 49,994.91
  4. Step 4: Simplify right side
    56,815.62x = 3,917,578,149.94
  5. Step 5: Solve for x
    x = 3,917,578,149.94/56,815.62
  6. Step 6: Final answer
    x = 68,952.49

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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.