Home / 81,400.37-122,002.13-41,935.95

Finding the Fourth Proportional to 81,400.37, 122,002.13 and 41,935.95

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Solution

The fourth proportional to 81,400.37, 122,002.13 and 41,935.95 is: 62,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,400.37 : 122,002.13 = 41,935.95 : x
  2. Step 2: Convert to fraction form
    81,400.37/122,002.13 = 41,935.95/x
  3. Step 3: Cross multiply
    81,400.37x = 122,002.13 × 41,935.95
  4. Step 4: Simplify right side
    81,400.37x = 5,116,275,328.41
  5. Step 5: Solve for x
    x = 5,116,275,328.41/81,400.37
  6. Step 6: Final answer
    x = 62,853.22

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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.