Home / 68,557.32-102,844.30-19,309.32

Finding the Fourth Proportional to 68,557.32, 102,844.30 and 19,309.32

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Solution

The fourth proportional to 68,557.32, 102,844.30 and 19,309.32 is: 28,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,557.32 : 102,844.30 = 19,309.32 : x
  2. Step 2: Convert to fraction form
    68,557.32/102,844.30 = 19,309.32/x
  3. Step 3: Cross multiply
    68,557.32x = 102,844.30 × 19,309.32
  4. Step 4: Simplify right side
    68,557.32x = 1,985,853,498.88
  5. Step 5: Solve for x
    x = 1,985,853,498.88/68,557.32
  6. Step 6: Final answer
    x = 28,966.32

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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.