Home / 89,385.36-123,366.96-51,682.56

Finding the Fourth Proportional to 89,385.36, 123,366.96 and 51,682.56

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Solution

The fourth proportional to 89,385.36, 123,366.96 and 51,682.56 is: 71,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,385.36 : 123,366.96 = 51,682.56 : x
  2. Step 2: Convert to fraction form
    89,385.36/123,366.96 = 51,682.56/x
  3. Step 3: Cross multiply
    89,385.36x = 123,366.96 × 51,682.56
  4. Step 4: Simplify right side
    89,385.36x = 6,375,920,312.22
  5. Step 5: Solve for x
    x = 6,375,920,312.22/89,385.36
  6. Step 6: Final answer
    x = 71,330.70

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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.