Home / 89,619.88-123,674.48-49,332.80

Finding the Fourth Proportional to 89,619.88, 123,674.48 and 49,332.80

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Solution

The fourth proportional to 89,619.88, 123,674.48 and 49,332.80 is: 68,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.88 : 123,674.48 = 49,332.80 : x
  2. Step 2: Convert to fraction form
    89,619.88/123,674.48 = 49,332.80/x
  3. Step 3: Cross multiply
    89,619.88x = 123,674.48 × 49,332.80
  4. Step 4: Simplify right side
    89,619.88x = 6,101,208,386.94
  5. Step 5: Solve for x
    x = 6,101,208,386.94/89,619.88
  6. Step 6: Final answer
    x = 68,078.74

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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.