Home / 68,845.67-103,248.65-18,927.40

Finding the Fourth Proportional to 68,845.67, 103,248.65 and 18,927.40

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Solution

The fourth proportional to 68,845.67, 103,248.65 and 18,927.40 is: 28,385.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,845.67 : 103,248.65 = 18,927.40 : x
  2. Step 2: Convert to fraction form
    68,845.67/103,248.65 = 18,927.40/x
  3. Step 3: Cross multiply
    68,845.67x = 103,248.65 × 18,927.40
  4. Step 4: Simplify right side
    68,845.67x = 1,954,227,887.13
  5. Step 5: Solve for x
    x = 1,954,227,887.13/68,845.67
  6. Step 6: Final answer
    x = 28,385.63

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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.