Home / 89,410.21-123,334.77-55,817.89

Finding the Fourth Proportional to 89,410.21, 123,334.77 and 55,817.89

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Solution

The fourth proportional to 89,410.21, 123,334.77 and 55,817.89 is: 76,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,410.21 : 123,334.77 = 55,817.89 : x
  2. Step 2: Convert to fraction form
    89,410.21/123,334.77 = 55,817.89/x
  3. Step 3: Cross multiply
    89,410.21x = 123,334.77 × 55,817.89
  4. Step 4: Simplify right side
    89,410.21x = 6,884,286,625.04
  5. Step 5: Solve for x
    x = 6,884,286,625.04/89,410.21
  6. Step 6: Final answer
    x = 76,996.65

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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.