Home / 89,440.46-123,427.42-51,199.78

Finding the Fourth Proportional to 89,440.46, 123,427.42 and 51,199.78

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Solution

The fourth proportional to 89,440.46, 123,427.42 and 51,199.78 is: 70,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,440.46 : 123,427.42 = 51,199.78 : x
  2. Step 2: Convert to fraction form
    89,440.46/123,427.42 = 51,199.78/x
  3. Step 3: Cross multiply
    89,440.46x = 123,427.42 × 51,199.78
  4. Step 4: Simplify right side
    89,440.46x = 6,319,456,749.97
  5. Step 5: Solve for x
    x = 6,319,456,749.97/89,440.46
  6. Step 6: Final answer
    x = 70,655.46

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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.