Home / 89,603.16-123,649.68-49,316.88

Finding the Fourth Proportional to 89,603.16, 123,649.68 and 49,316.88

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Solution

The fourth proportional to 89,603.16, 123,649.68 and 49,316.88 is: 68,055.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,603.16 : 123,649.68 = 49,316.88 : x
  2. Step 2: Convert to fraction form
    89,603.16/123,649.68 = 49,316.88/x
  3. Step 3: Cross multiply
    89,603.16x = 123,649.68 × 49,316.88
  4. Step 4: Simplify right side
    89,603.16x = 6,098,016,430.60
  5. Step 5: Solve for x
    x = 6,098,016,430.60/89,603.16
  6. Step 6: Final answer
    x = 68,055.82

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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.