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Finding the Fourth Proportional to 89,261.60, 123,170.60 and 53,446.64

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Solution

The fourth proportional to 89,261.60, 123,170.60 and 53,446.64 is: 73,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,261.60 : 123,170.60 = 53,446.64 : x
  2. Step 2: Convert to fraction form
    89,261.60/123,170.60 = 53,446.64/x
  3. Step 3: Cross multiply
    89,261.60x = 123,170.60 × 53,446.64
  4. Step 4: Simplify right side
    89,261.60x = 6,583,054,716.78
  5. Step 5: Solve for x
    x = 6,583,054,716.78/89,261.60
  6. Step 6: Final answer
    x = 73,750.13

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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.