Home / 89,681.41-123,765.96-49,395.16

Finding the Fourth Proportional to 89,681.41, 123,765.96 and 49,395.16

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Solution

The fourth proportional to 89,681.41, 123,765.96 and 49,395.16 is: 68,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,681.41 : 123,765.96 = 49,395.16 : x
  2. Step 2: Convert to fraction form
    89,681.41/123,765.96 = 49,395.16/x
  3. Step 3: Cross multiply
    89,681.41x = 123,765.96 × 49,395.16
  4. Step 4: Simplify right side
    89,681.41x = 6,113,439,736.69
  5. Step 5: Solve for x
    x = 6,113,439,736.69/89,681.41
  6. Step 6: Final answer
    x = 68,168.42

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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.