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Finding the Fourth Proportional to 64,425.40, 88,906.88 and 36,131.70

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Solution

The fourth proportional to 64,425.40, 88,906.88 and 36,131.70 is: 49,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,425.40 : 88,906.88 = 36,131.70 : x
  2. Step 2: Convert to fraction form
    64,425.40/88,906.88 = 36,131.70/x
  3. Step 3: Cross multiply
    64,425.40x = 88,906.88 × 36,131.70
  4. Step 4: Simplify right side
    64,425.40x = 3,212,356,716.10
  5. Step 5: Solve for x
    x = 3,212,356,716.10/64,425.40
  6. Step 6: Final answer
    x = 49,861.65

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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.