Home / 89,139.62-133,619.42-55,883.05

Finding the Fourth Proportional to 89,139.62, 133,619.42 and 55,883.05

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Solution

The fourth proportional to 89,139.62, 133,619.42 and 55,883.05 is: 83,768.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,139.62 : 133,619.42 = 55,883.05 : x
  2. Step 2: Convert to fraction form
    89,139.62/133,619.42 = 55,883.05/x
  3. Step 3: Cross multiply
    89,139.62x = 133,619.42 × 55,883.05
  4. Step 4: Simplify right side
    89,139.62x = 7,467,060,534.49
  5. Step 5: Solve for x
    x = 7,467,060,534.49/89,139.62
  6. Step 6: Final answer
    x = 83,768.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.