Home / 89,681.63-123,766.26-49,395.38

Finding the Fourth Proportional to 89,681.63, 123,766.26 and 49,395.38

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Solution

The fourth proportional to 89,681.63, 123,766.26 and 49,395.38 is: 68,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,681.63 : 123,766.26 = 49,395.38 : x
  2. Step 2: Convert to fraction form
    89,681.63/123,766.26 = 49,395.38/x
  3. Step 3: Cross multiply
    89,681.63x = 123,766.26 × 49,395.38
  4. Step 4: Simplify right side
    89,681.63x = 6,113,480,639.81
  5. Step 5: Solve for x
    x = 6,113,480,639.81/89,681.63
  6. Step 6: Final answer
    x = 68,168.71

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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.