Home / 84,723.56-127,048.40-28,553.22

Finding the Fourth Proportional to 84,723.56, 127,048.40 and 28,553.22

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Solution

The fourth proportional to 84,723.56, 127,048.40 and 28,553.22 is: 42,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,723.56 : 127,048.40 = 28,553.22 : x
  2. Step 2: Convert to fraction form
    84,723.56/127,048.40 = 28,553.22/x
  3. Step 3: Cross multiply
    84,723.56x = 127,048.40 × 28,553.22
  4. Step 4: Simplify right side
    84,723.56x = 3,627,640,915.85
  5. Step 5: Solve for x
    x = 3,627,640,915.85/84,723.56
  6. Step 6: Final answer
    x = 42,817.38

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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.