Home / 89,502.21-123,513.53-49,218.57

Finding the Fourth Proportional to 89,502.21, 123,513.53 and 49,218.57

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Solution

The fourth proportional to 89,502.21, 123,513.53 and 49,218.57 is: 67,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,502.21 : 123,513.53 = 49,218.57 : x
  2. Step 2: Convert to fraction form
    89,502.21/123,513.53 = 49,218.57/x
  3. Step 3: Cross multiply
    89,502.21x = 123,513.53 × 49,218.57
  4. Step 4: Simplify right side
    89,502.21x = 6,079,159,076.16
  5. Step 5: Solve for x
    x = 6,079,159,076.16/89,502.21
  6. Step 6: Final answer
    x = 67,921.89

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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.