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Finding the Fourth Proportional to 89,250.44, 133,664.58 and 77,499.80

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Solution

The fourth proportional to 89,250.44, 133,664.58 and 77,499.80 is: 116,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,250.44 : 133,664.58 = 77,499.80 : x
  2. Step 2: Convert to fraction form
    89,250.44/133,664.58 = 77,499.80/x
  3. Step 3: Cross multiply
    89,250.44x = 133,664.58 × 77,499.80
  4. Step 4: Simplify right side
    89,250.44x = 10,358,978,217.08
  5. Step 5: Solve for x
    x = 10,358,978,217.08/89,250.44
  6. Step 6: Final answer
    x = 116,066.41

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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.