Home / 89,589.26-123,638.28-51,355.17

Finding the Fourth Proportional to 89,589.26, 123,638.28 and 51,355.17

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Solution

The fourth proportional to 89,589.26, 123,638.28 and 51,355.17 is: 70,873.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,589.26 : 123,638.28 = 51,355.17 : x
  2. Step 2: Convert to fraction form
    89,589.26/123,638.28 = 51,355.17/x
  3. Step 3: Cross multiply
    89,589.26x = 123,638.28 × 51,355.17
  4. Step 4: Simplify right side
    89,589.26x = 6,349,464,887.91
  5. Step 5: Solve for x
    x = 6,349,464,887.91/89,589.26
  6. Step 6: Final answer
    x = 70,873.06

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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.