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Finding the Fourth Proportional to 93,247.44, 128,729.12 and 63,191.60

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Solution

The fourth proportional to 93,247.44, 128,729.12 and 63,191.60 is: 87,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,247.44 : 128,729.12 = 63,191.60 : x
  2. Step 2: Convert to fraction form
    93,247.44/128,729.12 = 63,191.60/x
  3. Step 3: Cross multiply
    93,247.44x = 128,729.12 × 63,191.60
  4. Step 4: Simplify right side
    93,247.44x = 8,134,599,059.39
  5. Step 5: Solve for x
    x = 8,134,599,059.39/93,247.44
  6. Step 6: Final answer
    x = 87,236.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.