Home / 68,403.12-102,560.26-28,411.14

Finding the Fourth Proportional to 68,403.12, 102,560.26 and 28,411.14

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Solution

The fourth proportional to 68,403.12, 102,560.26 and 28,411.14 is: 42,598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,403.12 : 102,560.26 = 28,411.14 : x
  2. Step 2: Convert to fraction form
    68,403.12/102,560.26 = 28,411.14/x
  3. Step 3: Cross multiply
    68,403.12x = 102,560.26 × 28,411.14
  4. Step 4: Simplify right side
    68,403.12x = 2,913,853,905.30
  5. Step 5: Solve for x
    x = 2,913,853,905.30/68,403.12
  6. Step 6: Final answer
    x = 42,598.26

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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.