Home / 68,123.07-102,201.02-21,375.95

Finding the Fourth Proportional to 68,123.07, 102,201.02 and 21,375.95

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Solution

The fourth proportional to 68,123.07, 102,201.02 and 21,375.95 is: 32,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,123.07 : 102,201.02 = 21,375.95 : x
  2. Step 2: Convert to fraction form
    68,123.07/102,201.02 = 21,375.95/x
  3. Step 3: Cross multiply
    68,123.07x = 102,201.02 × 21,375.95
  4. Step 4: Simplify right side
    68,123.07x = 2,184,643,275.58
  5. Step 5: Solve for x
    x = 2,184,643,275.58/68,123.07
  6. Step 6: Final answer
    x = 32,069.07

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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.