Home / 81,527.71-112,509.40-49,257.85

Finding the Fourth Proportional to 81,527.71, 112,509.40 and 49,257.85

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Solution

The fourth proportional to 81,527.71, 112,509.40 and 49,257.85 is: 67,976.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,527.71 : 112,509.40 = 49,257.85 : x
  2. Step 2: Convert to fraction form
    81,527.71/112,509.40 = 49,257.85/x
  3. Step 3: Cross multiply
    81,527.71x = 112,509.40 × 49,257.85
  4. Step 4: Simplify right side
    81,527.71x = 5,541,970,929.09
  5. Step 5: Solve for x
    x = 5,541,970,929.09/81,527.71
  6. Step 6: Final answer
    x = 67,976.53

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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.