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Finding the Fourth Proportional to 72,673.56, 109,010.34 and 25,915.50

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Solution

The fourth proportional to 72,673.56, 109,010.34 and 25,915.50 is: 38,873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,673.56 : 109,010.34 = 25,915.50 : x
  2. Step 2: Convert to fraction form
    72,673.56/109,010.34 = 25,915.50/x
  3. Step 3: Cross multiply
    72,673.56x = 109,010.34 × 25,915.50
  4. Step 4: Simplify right side
    72,673.56x = 2,825,057,466.27
  5. Step 5: Solve for x
    x = 2,825,057,466.27/72,673.56
  6. Step 6: Final answer
    x = 38,873.25

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1.5x scale

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.