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Finding the Fourth Proportional to 85,346.40, 127,911.60 and 32,685.60

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Solution

The fourth proportional to 85,346.40, 127,911.60 and 32,685.60 is: 48,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,346.40 : 127,911.60 = 32,685.60 : x
  2. Step 2: Convert to fraction form
    85,346.40/127,911.60 = 32,685.60/x
  3. Step 3: Cross multiply
    85,346.40x = 127,911.60 × 32,685.60
  4. Step 4: Simplify right side
    85,346.40x = 4,180,867,392.96
  5. Step 5: Solve for x
    x = 4,180,867,392.96/85,346.40
  6. Step 6: Final answer
    x = 48,987.04

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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.