Home / 64,651.14-89,217.90-36,357.12

Finding the Fourth Proportional to 64,651.14, 89,217.90 and 36,357.12

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Solution

The fourth proportional to 64,651.14, 89,217.90 and 36,357.12 is: 50,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,651.14 : 89,217.90 = 36,357.12 : x
  2. Step 2: Convert to fraction form
    64,651.14/89,217.90 = 36,357.12/x
  3. Step 3: Cross multiply
    64,651.14x = 89,217.90 × 36,357.12
  4. Step 4: Simplify right side
    64,651.14x = 3,243,705,896.45
  5. Step 5: Solve for x
    x = 3,243,705,896.45/64,651.14
  6. Step 6: Final answer
    x = 50,172.45

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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.