Home / 68,021.10-102,014.64-28,606.50

Finding the Fourth Proportional to 68,021.10, 102,014.64 and 28,606.50

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Solution

The fourth proportional to 68,021.10, 102,014.64 and 28,606.50 is: 42,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,021.10 : 102,014.64 = 28,606.50 : x
  2. Step 2: Convert to fraction form
    68,021.10/102,014.64 = 28,606.50/x
  3. Step 3: Cross multiply
    68,021.10x = 102,014.64 × 28,606.50
  4. Step 4: Simplify right side
    68,021.10x = 2,918,281,799.16
  5. Step 5: Solve for x
    x = 2,918,281,799.16/68,021.10
  6. Step 6: Final answer
    x = 42,902.60

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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.