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Finding the Fourth Proportional to 93,810, 140,749.56 and 49,434.96

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Solution

The fourth proportional to 93,810, 140,749.56 and 49,434.96 is: 74,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,810 : 140,749.56 = 49,434.96 : x
  2. Step 2: Convert to fraction form
    93,810/140,749.56 = 49,434.96/x
  3. Step 3: Cross multiply
    93,810x = 140,749.56 × 49,434.96
  4. Step 4: Simplify right side
    93,810x = 6,957,948,868.62
  5. Step 5: Solve for x
    x = 6,957,948,868.62/93,810
  6. Step 6: Final answer
    x = 74,170.65

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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.