Home / 85,310.37-127,703.07-55,664.37

Finding the Fourth Proportional to 85,310.37, 127,703.07 and 55,664.37

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Solution

The fourth proportional to 85,310.37, 127,703.07 and 55,664.37 is: 83,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310.37 : 127,703.07 = 55,664.37 : x
  2. Step 2: Convert to fraction form
    85,310.37/127,703.07 = 55,664.37/x
  3. Step 3: Cross multiply
    85,310.37x = 127,703.07 × 55,664.37
  4. Step 4: Simplify right side
    85,310.37x = 7,108,510,938.62
  5. Step 5: Solve for x
    x = 7,108,510,938.62/85,310.37
  6. Step 6: Final answer
    x = 83,325.29

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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.