Home / 71,361.13-98,478.36-39,532.09

Finding the Fourth Proportional to 71,361.13, 98,478.36 and 39,532.09

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Solution

The fourth proportional to 71,361.13, 98,478.36 and 39,532.09 is: 54,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,361.13 : 98,478.36 = 39,532.09 : x
  2. Step 2: Convert to fraction form
    71,361.13/98,478.36 = 39,532.09/x
  3. Step 3: Cross multiply
    71,361.13x = 98,478.36 × 39,532.09
  4. Step 4: Simplify right side
    71,361.13x = 3,893,054,700.52
  5. Step 5: Solve for x
    x = 3,893,054,700.52/71,361.13
  6. Step 6: Final answer
    x = 54,554.28

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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.