Home / 89,492.40-123,489.88-51,759.28

Finding the Fourth Proportional to 89,492.40, 123,489.88 and 51,759.28

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Solution

The fourth proportional to 89,492.40, 123,489.88 and 51,759.28 is: 71,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,492.40 : 123,489.88 = 51,759.28 : x
  2. Step 2: Convert to fraction form
    89,492.40/123,489.88 = 51,759.28/x
  3. Step 3: Cross multiply
    89,492.40x = 123,489.88 × 51,759.28
  4. Step 4: Simplify right side
    89,492.40x = 6,391,747,276.09
  5. Step 5: Solve for x
    x = 6,391,747,276.09/89,492.40
  6. Step 6: Final answer
    x = 71,422.24

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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.