Home / 89,772.45-123,891.51-49,486.11

Finding the Fourth Proportional to 89,772.45, 123,891.51 and 49,486.11

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Solution

The fourth proportional to 89,772.45, 123,891.51 and 49,486.11 is: 68,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,772.45 : 123,891.51 = 49,486.11 : x
  2. Step 2: Convert to fraction form
    89,772.45/123,891.51 = 49,486.11/x
  3. Step 3: Cross multiply
    89,772.45x = 123,891.51 × 49,486.11
  4. Step 4: Simplify right side
    89,772.45x = 6,130,908,891.93
  5. Step 5: Solve for x
    x = 6,130,908,891.93/89,772.45
  6. Step 6: Final answer
    x = 68,293.88

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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.