Home / 89,681.48-123,761.26-49,396.64

Finding the Fourth Proportional to 89,681.48, 123,761.26 and 49,396.64

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Solution

The fourth proportional to 89,681.48, 123,761.26 and 49,396.64 is: 68,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,681.48 : 123,761.26 = 49,396.64 : x
  2. Step 2: Convert to fraction form
    89,681.48/123,761.26 = 49,396.64/x
  3. Step 3: Cross multiply
    89,681.48x = 123,761.26 × 49,396.64
  4. Step 4: Simplify right side
    89,681.48x = 6,113,390,406.17
  5. Step 5: Solve for x
    x = 6,113,390,406.17/89,681.48
  6. Step 6: Final answer
    x = 68,167.81

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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.