Home / 71,172.01-98,213.54-39,339.01

Finding the Fourth Proportional to 71,172.01, 98,213.54 and 39,339.01

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Solution

The fourth proportional to 71,172.01, 98,213.54 and 39,339.01 is: 54,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,172.01 : 98,213.54 = 39,339.01 : x
  2. Step 2: Convert to fraction form
    71,172.01/98,213.54 = 39,339.01/x
  3. Step 3: Cross multiply
    71,172.01x = 98,213.54 × 39,339.01
  4. Step 4: Simplify right side
    71,172.01x = 3,863,622,989.97
  5. Step 5: Solve for x
    x = 3,863,622,989.97/71,172.01
  6. Step 6: Final answer
    x = 54,285.71

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1.5x scale

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.