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Finding the Fourth Proportional to 64,760.88, 89,378.19 and 36,466.50

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Solution

The fourth proportional to 64,760.88, 89,378.19 and 36,466.50 is: 50,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,760.88 : 89,378.19 = 36,466.50 : x
  2. Step 2: Convert to fraction form
    64,760.88/89,378.19 = 36,466.50/x
  3. Step 3: Cross multiply
    64,760.88x = 89,378.19 × 36,466.50
  4. Step 4: Simplify right side
    64,760.88x = 3,259,309,765.64
  5. Step 5: Solve for x
    x = 3,259,309,765.64/64,760.88
  6. Step 6: Final answer
    x = 50,328.37

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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.