Home / 68,720.47-103,096.85-21,333.13

Finding the Fourth Proportional to 68,720.47, 103,096.85 and 21,333.13

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Solution

The fourth proportional to 68,720.47, 103,096.85 and 21,333.13 is: 32,004.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,720.47 : 103,096.85 = 21,333.13 : x
  2. Step 2: Convert to fraction form
    68,720.47/103,096.85 = 21,333.13/x
  3. Step 3: Cross multiply
    68,720.47x = 103,096.85 × 21,333.13
  4. Step 4: Simplify right side
    68,720.47x = 2,199,378,503.64
  5. Step 5: Solve for x
    x = 2,199,378,503.64/68,720.47
  6. Step 6: Final answer
    x = 32,004.71

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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.