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Finding the Fourth Proportional to 65,147.52, 89,805.58 and 50,975.76

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Solution

The fourth proportional to 65,147.52, 89,805.58 and 50,975.76 is: 70,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,147.52 : 89,805.58 = 50,975.76 : x
  2. Step 2: Convert to fraction form
    65,147.52/89,805.58 = 50,975.76/x
  3. Step 3: Cross multiply
    65,147.52x = 89,805.58 × 50,975.76
  4. Step 4: Simplify right side
    65,147.52x = 4,577,907,692.74
  5. Step 5: Solve for x
    x = 4,577,907,692.74/65,147.52
  6. Step 6: Final answer
    x = 70,269.87

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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.