Home / 89,409.21-123,333.39-55,816.89

Finding the Fourth Proportional to 89,409.21, 123,333.39 and 55,816.89

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Solution

The fourth proportional to 89,409.21, 123,333.39 and 55,816.89 is: 76,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,409.21 : 123,333.39 = 55,816.89 : x
  2. Step 2: Convert to fraction form
    89,409.21/123,333.39 = 55,816.89/x
  3. Step 3: Cross multiply
    89,409.21x = 123,333.39 × 55,816.89
  4. Step 4: Simplify right side
    89,409.21x = 6,884,086,262.96
  5. Step 5: Solve for x
    x = 6,884,086,262.96/89,409.21
  6. Step 6: Final answer
    x = 76,995.27

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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.