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Finding the Fourth Proportional to 89,208.88, 123,043.80 and 75,758.92

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Solution

The fourth proportional to 89,208.88, 123,043.80 and 75,758.92 is: 104,492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,208.88 : 123,043.80 = 75,758.92 : x
  2. Step 2: Convert to fraction form
    89,208.88/123,043.80 = 75,758.92/x
  3. Step 3: Cross multiply
    89,208.88x = 123,043.80 × 75,758.92
  4. Step 4: Simplify right side
    89,208.88x = 9,321,665,400.70
  5. Step 5: Solve for x
    x = 9,321,665,400.70/89,208.88
  6. Step 6: Final answer
    x = 104,492.57

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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.