Home / 89,209.13-123,108.59-49,465.13

Finding the Fourth Proportional to 89,209.13, 123,108.59 and 49,465.13

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Solution

The fourth proportional to 89,209.13, 123,108.59 and 49,465.13 is: 68,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,209.13 : 123,108.59 = 49,465.13 : x
  2. Step 2: Convert to fraction form
    89,209.13/123,108.59 = 49,465.13/x
  3. Step 3: Cross multiply
    89,209.13x = 123,108.59 × 49,465.13
  4. Step 4: Simplify right side
    89,209.13x = 6,089,581,916.59
  5. Step 5: Solve for x
    x = 6,089,581,916.59/89,209.13
  6. Step 6: Final answer
    x = 68,261.87

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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.