Home / 89,501.54-123,481.38-55,497.78

Finding the Fourth Proportional to 89,501.54, 123,481.38 and 55,497.78

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Solution

The fourth proportional to 89,501.54, 123,481.38 and 55,497.78 is: 76,567.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,501.54 : 123,481.38 = 55,497.78 : x
  2. Step 2: Convert to fraction form
    89,501.54/123,481.38 = 55,497.78/x
  3. Step 3: Cross multiply
    89,501.54x = 123,481.38 × 55,497.78
  4. Step 4: Simplify right side
    89,501.54x = 6,852,942,461.34
  5. Step 5: Solve for x
    x = 6,852,942,461.34/89,501.54
  6. Step 6: Final answer
    x = 76,567.87

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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.