Home / 68,386.83-102,569.98-21,633.63

Finding the Fourth Proportional to 68,386.83, 102,569.98 and 21,633.63

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Solution

The fourth proportional to 68,386.83, 102,569.98 and 21,633.63 is: 32,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,386.83 : 102,569.98 = 21,633.63 : x
  2. Step 2: Convert to fraction form
    68,386.83/102,569.98 = 21,633.63/x
  3. Step 3: Cross multiply
    68,386.83x = 102,569.98 × 21,633.63
  4. Step 4: Simplify right side
    68,386.83x = 2,218,960,996.43
  5. Step 5: Solve for x
    x = 2,218,960,996.43/68,386.83
  6. Step 6: Final answer
    x = 32,447.20

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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.