Home / 89,685.09-123,767.64-49,400.19

Finding the Fourth Proportional to 89,685.09, 123,767.64 and 49,400.19

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Solution

The fourth proportional to 89,685.09, 123,767.64 and 49,400.19 is: 68,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,685.09 : 123,767.64 = 49,400.19 : x
  2. Step 2: Convert to fraction form
    89,685.09/123,767.64 = 49,400.19/x
  3. Step 3: Cross multiply
    89,685.09x = 123,767.64 × 49,400.19
  4. Step 4: Simplify right side
    89,685.09x = 6,114,144,931.85
  5. Step 5: Solve for x
    x = 6,114,144,931.85/89,685.09
  6. Step 6: Final answer
    x = 68,173.48

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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.