Home / 81,914.54-122,889.35-46,392.65

Finding the Fourth Proportional to 81,914.54, 122,889.35 and 46,392.65

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Solution

The fourth proportional to 81,914.54, 122,889.35 and 46,392.65 is: 69,598.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.54 : 122,889.35 = 46,392.65 : x
  2. Step 2: Convert to fraction form
    81,914.54/122,889.35 = 46,392.65/x
  3. Step 3: Cross multiply
    81,914.54x = 122,889.35 × 46,392.65
  4. Step 4: Simplify right side
    81,914.54x = 5,701,162,565.65
  5. Step 5: Solve for x
    x = 5,701,162,565.65/81,914.54
  6. Step 6: Final answer
    x = 69,598.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.