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Finding the Fourth Proportional to 72,627.44, 108,947.44 and 20,036.92

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Solution

The fourth proportional to 72,627.44, 108,947.44 and 20,036.92 is: 30,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,627.44 : 108,947.44 = 20,036.92 : x
  2. Step 2: Convert to fraction form
    72,627.44/108,947.44 = 20,036.92/x
  3. Step 3: Cross multiply
    72,627.44x = 108,947.44 × 20,036.92
  4. Step 4: Simplify right side
    72,627.44x = 2,182,971,361.76
  5. Step 5: Solve for x
    x = 2,182,971,361.76/72,627.44
  6. Step 6: Final answer
    x = 30,057.12

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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.