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Finding the Fourth Proportional to 68,609.60, 102,914.40 and 57,334.40

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Solution

The fourth proportional to 68,609.60, 102,914.40 and 57,334.40 is: 86,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,609.60 : 102,914.40 = 57,334.40 : x
  2. Step 2: Convert to fraction form
    68,609.60/102,914.40 = 57,334.40/x
  3. Step 3: Cross multiply
    68,609.60x = 102,914.40 × 57,334.40
  4. Step 4: Simplify right side
    68,609.60x = 5,900,535,375.36
  5. Step 5: Solve for x
    x = 5,900,535,375.36/68,609.60
  6. Step 6: Final answer
    x = 86,001.60

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1.5x scale

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.