Home / 68,340.68-102,499.34-18,409.10

Finding the Fourth Proportional to 68,340.68, 102,499.34 and 18,409.10

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Solution

The fourth proportional to 68,340.68, 102,499.34 and 18,409.10 is: 27,610.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,340.68 : 102,499.34 = 18,409.10 : x
  2. Step 2: Convert to fraction form
    68,340.68/102,499.34 = 18,409.10/x
  3. Step 3: Cross multiply
    68,340.68x = 102,499.34 × 18,409.10
  4. Step 4: Simplify right side
    68,340.68x = 1,886,920,507.95
  5. Step 5: Solve for x
    x = 1,886,920,507.95/68,340.68
  6. Step 6: Final answer
    x = 27,610.50

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1.5x scale

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.