Home / 68,985.61-103,518.32-29,001.43

Finding the Fourth Proportional to 68,985.61, 103,518.32 and 29,001.43

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Solution

The fourth proportional to 68,985.61, 103,518.32 and 29,001.43 is: 43,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,985.61 : 103,518.32 = 29,001.43 : x
  2. Step 2: Convert to fraction form
    68,985.61/103,518.32 = 29,001.43/x
  3. Step 3: Cross multiply
    68,985.61x = 103,518.32 × 29,001.43
  4. Step 4: Simplify right side
    68,985.61x = 3,002,179,311.20
  5. Step 5: Solve for x
    x = 3,002,179,311.20/68,985.61
  6. Step 6: Final answer
    x = 43,518.92

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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.