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Finding the Fourth Proportional to 89,110.40, 133,665.60 and 57,617.60

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Solution

The fourth proportional to 89,110.40, 133,665.60 and 57,617.60 is: 86,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,110.40 : 133,665.60 = 57,617.60 : x
  2. Step 2: Convert to fraction form
    89,110.40/133,665.60 = 57,617.60/x
  3. Step 3: Cross multiply
    89,110.40x = 133,665.60 × 57,617.60
  4. Step 4: Simplify right side
    89,110.40x = 7,701,491,074.56
  5. Step 5: Solve for x
    x = 7,701,491,074.56/89,110.40
  6. Step 6: Final answer
    x = 86,426.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.