Home / 272,445.72-408,683.96-82,912.28

Finding the Fourth Proportional to 272,445.72, 408,683.96 and 82,912.28

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Solution

The fourth proportional to 272,445.72, 408,683.96 and 82,912.28 is: 124,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,445.72 : 408,683.96 = 82,912.28 : x
  2. Step 2: Convert to fraction form
    272,445.72/408,683.96 = 82,912.28/x
  3. Step 3: Cross multiply
    272,445.72x = 408,683.96 × 82,912.28
  4. Step 4: Simplify right side
    272,445.72x = 33,884,918,923.03
  5. Step 5: Solve for x
    x = 33,884,918,923.03/272,445.72
  6. Step 6: Final answer
    x = 124,373.10

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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.