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Finding the Fourth Proportional to 89,352.80, 133,980.60 and 36,767.60

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Solution

The fourth proportional to 89,352.80, 133,980.60 and 36,767.60 is: 55,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,352.80 : 133,980.60 = 36,767.60 : x
  2. Step 2: Convert to fraction form
    89,352.80/133,980.60 = 36,767.60/x
  3. Step 3: Cross multiply
    89,352.80x = 133,980.60 × 36,767.60
  4. Step 4: Simplify right side
    89,352.80x = 4,926,145,108.56
  5. Step 5: Solve for x
    x = 4,926,145,108.56/89,352.80
  6. Step 6: Final answer
    x = 55,131.40

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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.