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Finding the Fourth Proportional to 64,672.50, 89,253.18 and 36,380.28

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Solution

The fourth proportional to 64,672.50, 89,253.18 and 36,380.28 is: 50,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,672.50 : 89,253.18 = 36,380.28 : x
  2. Step 2: Convert to fraction form
    64,672.50/89,253.18 = 36,380.28/x
  3. Step 3: Cross multiply
    64,672.50x = 89,253.18 × 36,380.28
  4. Step 4: Simplify right side
    64,672.50x = 3,247,055,679.29
  5. Step 5: Solve for x
    x = 3,247,055,679.29/64,672.50
  6. Step 6: Final answer
    x = 50,207.67

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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.