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Finding the Fourth Proportional to 93,406, 140,110.20 and 31,076.52

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Solution

The fourth proportional to 93,406, 140,110.20 and 31,076.52 is: 46,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,406 : 140,110.20 = 31,076.52 : x
  2. Step 2: Convert to fraction form
    93,406/140,110.20 = 31,076.52/x
  3. Step 3: Cross multiply
    93,406x = 140,110.20 × 31,076.52
  4. Step 4: Simplify right side
    93,406x = 4,354,137,432.50
  5. Step 5: Solve for x
    x = 4,354,137,432.50/93,406
  6. Step 6: Final answer
    x = 46,615.18

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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.