Home / 68,219.40-102,326.80-20,832.58

Finding the Fourth Proportional to 68,219.40, 102,326.80 and 20,832.58

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Solution

The fourth proportional to 68,219.40, 102,326.80 and 20,832.58 is: 31,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,219.40 : 102,326.80 = 20,832.58 : x
  2. Step 2: Convert to fraction form
    68,219.40/102,326.80 = 20,832.58/x
  3. Step 3: Cross multiply
    68,219.40x = 102,326.80 × 20,832.58
  4. Step 4: Simplify right side
    68,219.40x = 2,131,731,322.97
  5. Step 5: Solve for x
    x = 2,131,731,322.97/68,219.40
  6. Step 6: Final answer
    x = 31,248.17

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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.