Home / 89,396.71-123,378.38-51,670.96

Finding the Fourth Proportional to 89,396.71, 123,378.38 and 51,670.96

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Solution

The fourth proportional to 89,396.71, 123,378.38 and 51,670.96 is: 71,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,396.71 : 123,378.38 = 51,670.96 : x
  2. Step 2: Convert to fraction form
    89,396.71/123,378.38 = 51,670.96/x
  3. Step 3: Cross multiply
    89,396.71x = 123,378.38 × 51,670.96
  4. Step 4: Simplify right side
    89,396.71x = 6,375,079,337.84
  5. Step 5: Solve for x
    x = 6,375,079,337.84/89,396.71
  6. Step 6: Final answer
    x = 71,312.24

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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.