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Finding the Fourth Proportional to 69,861.76, 96,408.76 and 38,030.58

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Solution

The fourth proportional to 69,861.76, 96,408.76 and 38,030.58 is: 52,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,861.76 : 96,408.76 = 38,030.58 : x
  2. Step 2: Convert to fraction form
    69,861.76/96,408.76 = 38,030.58/x
  3. Step 3: Cross multiply
    69,861.76x = 96,408.76 × 38,030.58
  4. Step 4: Simplify right side
    69,861.76x = 3,666,481,059.88
  5. Step 5: Solve for x
    x = 3,666,481,059.88/69,861.76
  6. Step 6: Final answer
    x = 52,481.95

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1.5x scale

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.