Home / 78,935.14-108,912.08-48,721.73

Finding the Fourth Proportional to 78,935.14, 108,912.08 and 48,721.73

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Solution

The fourth proportional to 78,935.14, 108,912.08 and 48,721.73 is: 67,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,935.14 : 108,912.08 = 48,721.73 : x
  2. Step 2: Convert to fraction form
    78,935.14/108,912.08 = 48,721.73/x
  3. Step 3: Cross multiply
    78,935.14x = 108,912.08 × 48,721.73
  4. Step 4: Simplify right side
    78,935.14x = 5,306,384,955.50
  5. Step 5: Solve for x
    x = 5,306,384,955.50/78,935.14
  6. Step 6: Final answer
    x = 67,224.62

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1.5x scale

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.