Home / 76,092.19-105,043.83-50,640.91

Finding the Fourth Proportional to 76,092.19, 105,043.83 and 50,640.91

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Solution

The fourth proportional to 76,092.19, 105,043.83 and 50,640.91 is: 69,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,092.19 : 105,043.83 = 50,640.91 : x
  2. Step 2: Convert to fraction form
    76,092.19/105,043.83 = 50,640.91/x
  3. Step 3: Cross multiply
    76,092.19x = 105,043.83 × 50,640.91
  4. Step 4: Simplify right side
    76,092.19x = 5,319,515,141.09
  5. Step 5: Solve for x
    x = 5,319,515,141.09/76,092.19
  6. Step 6: Final answer
    x = 69,908.82

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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.