Home / 68,083.08-102,130.02-21,335.88

Finding the Fourth Proportional to 68,083.08, 102,130.02 and 21,335.88

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Solution

The fourth proportional to 68,083.08, 102,130.02 and 21,335.88 is: 32,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,083.08 : 102,130.02 = 21,335.88 : x
  2. Step 2: Convert to fraction form
    68,083.08/102,130.02 = 21,335.88/x
  3. Step 3: Cross multiply
    68,083.08x = 102,130.02 × 21,335.88
  4. Step 4: Simplify right side
    68,083.08x = 2,179,033,851.12
  5. Step 5: Solve for x
    x = 2,179,033,851.12/68,083.08
  6. Step 6: Final answer
    x = 32,005.51

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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.