Home / 76,718.75-105,904.62-51,582.83

Finding the Fourth Proportional to 76,718.75, 105,904.62 and 51,582.83

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Solution

The fourth proportional to 76,718.75, 105,904.62 and 51,582.83 is: 71,206.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,718.75 : 105,904.62 = 51,582.83 : x
  2. Step 2: Convert to fraction form
    76,718.75/105,904.62 = 51,582.83/x
  3. Step 3: Cross multiply
    76,718.75x = 105,904.62 × 51,582.83
  4. Step 4: Simplify right side
    76,718.75x = 5,462,859,480.15
  5. Step 5: Solve for x
    x = 5,462,859,480.15/76,718.75
  6. Step 6: Final answer
    x = 71,206.32

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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.