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Finding the Fourth Proportional to 66,960.48, 100,457.44 and 47,277.52

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Solution

The fourth proportional to 66,960.48, 100,457.44 and 47,277.52 is: 70,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,960.48 : 100,457.44 = 47,277.52 : x
  2. Step 2: Convert to fraction form
    66,960.48/100,457.44 = 47,277.52/x
  3. Step 3: Cross multiply
    66,960.48x = 100,457.44 × 47,277.52
  4. Step 4: Simplify right side
    66,960.48x = 4,749,378,628.75
  5. Step 5: Solve for x
    x = 4,749,378,628.75/66,960.48
  6. Step 6: Final answer
    x = 70,928.09

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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.