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Finding the Fourth Proportional to 70,553.45, 97,363.79 and 40,339.37

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Solution

The fourth proportional to 70,553.45, 97,363.79 and 40,339.37 is: 55,668.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,553.45 : 97,363.79 = 40,339.37 : x
  2. Step 2: Convert to fraction form
    70,553.45/97,363.79 = 40,339.37/x
  3. Step 3: Cross multiply
    70,553.45x = 97,363.79 × 40,339.37
  4. Step 4: Simplify right side
    70,553.45x = 3,927,593,594.73
  5. Step 5: Solve for x
    x = 3,927,593,594.73/70,553.45
  6. Step 6: Final answer
    x = 55,668.34

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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.