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Finding the Fourth Proportional to 89,682.48, 123,762.63 and 49,397.64

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Solution

The fourth proportional to 89,682.48, 123,762.63 and 49,397.64 is: 68,169.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,682.48 : 123,762.63 = 49,397.64 : x
  2. Step 2: Convert to fraction form
    89,682.48/123,762.63 = 49,397.64/x
  3. Step 3: Cross multiply
    89,682.48x = 123,762.63 × 49,397.64
  4. Step 4: Simplify right side
    89,682.48x = 6,113,581,842.19
  5. Step 5: Solve for x
    x = 6,113,581,842.19/89,682.48
  6. Step 6: Final answer
    x = 68,169.19

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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.