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Finding the Fourth Proportional to 72,610.08, 108,895.68 and 20,022.45

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Solution

The fourth proportional to 72,610.08, 108,895.68 and 20,022.45 is: 30,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,610.08 : 108,895.68 = 20,022.45 : x
  2. Step 2: Convert to fraction form
    72,610.08/108,895.68 = 20,022.45/x
  3. Step 3: Cross multiply
    72,610.08x = 108,895.68 × 20,022.45
  4. Step 4: Simplify right side
    72,610.08x = 2,180,358,308.02
  5. Step 5: Solve for x
    x = 2,180,358,308.02/72,610.08
  6. Step 6: Final answer
    x = 30,028.31

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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.