Home / 89,332.11-123,270.80-49,045.55

Finding the Fourth Proportional to 89,332.11, 123,270.80 and 49,045.55

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Solution

The fourth proportional to 89,332.11, 123,270.80 and 49,045.55 is: 67,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,332.11 : 123,270.80 = 49,045.55 : x
  2. Step 2: Convert to fraction form
    89,332.11/123,270.80 = 49,045.55/x
  3. Step 3: Cross multiply
    89,332.11x = 123,270.80 × 49,045.55
  4. Step 4: Simplify right side
    89,332.11x = 6,045,883,323.36
  5. Step 5: Solve for x
    x = 6,045,883,323.36/89,332.11
  6. Step 6: Final answer
    x = 67,678.73

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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.