Home / 71,366.33-98,478.36-39,529.28

Finding the Fourth Proportional to 71,366.33, 98,478.36 and 39,529.28

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Solution

The fourth proportional to 71,366.33, 98,478.36 and 39,529.28 is: 54,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,366.33 : 98,478.36 = 39,529.28 : x
  2. Step 2: Convert to fraction form
    71,366.33/98,478.36 = 39,529.28/x
  3. Step 3: Cross multiply
    71,366.33x = 98,478.36 × 39,529.28
  4. Step 4: Simplify right side
    71,366.33x = 3,892,778,395.05
  5. Step 5: Solve for x
    x = 3,892,778,395.05/71,366.33
  6. Step 6: Final answer
    x = 54,546.43

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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.