Home / 89,372.84-123,341.13-55,388.00

Finding the Fourth Proportional to 89,372.84, 123,341.13 and 55,388.00

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Solution

The fourth proportional to 89,372.84, 123,341.13 and 55,388.00 is: 76,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,372.84 : 123,341.13 = 55,388.00 : x
  2. Step 2: Convert to fraction form
    89,372.84/123,341.13 = 55,388.00/x
  3. Step 3: Cross multiply
    89,372.84x = 123,341.13 × 55,388.00
  4. Step 4: Simplify right side
    89,372.84x = 6,831,618,816.79
  5. Step 5: Solve for x
    x = 6,831,618,816.79/89,372.84
  6. Step 6: Final answer
    x = 76,439.54

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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.