Home / 89,581.50-123,571.05-55,989.18

Finding the Fourth Proportional to 89,581.50, 123,571.05 and 55,989.18

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Solution

The fourth proportional to 89,581.50, 123,571.05 and 55,989.18 is: 77,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,581.50 : 123,571.05 = 55,989.18 : x
  2. Step 2: Convert to fraction form
    89,581.50/123,571.05 = 55,989.18/x
  3. Step 3: Cross multiply
    89,581.50x = 123,571.05 × 55,989.18
  4. Step 4: Simplify right side
    89,581.50x = 6,918,641,761.24
  5. Step 5: Solve for x
    x = 6,918,641,761.24/89,581.50
  6. Step 6: Final answer
    x = 77,232.93

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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.