Home / 72,269.20-108,419.73-21,666.21

Finding the Fourth Proportional to 72,269.20, 108,419.73 and 21,666.21

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Solution

The fourth proportional to 72,269.20, 108,419.73 and 21,666.21 is: 32,504.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,269.20 : 108,419.73 = 21,666.21 : x
  2. Step 2: Convert to fraction form
    72,269.20/108,419.73 = 21,666.21/x
  3. Step 3: Cross multiply
    72,269.20x = 108,419.73 × 21,666.21
  4. Step 4: Simplify right side
    72,269.20x = 2,349,044,638.32
  5. Step 5: Solve for x
    x = 2,349,044,638.32/72,269.20
  6. Step 6: Final answer
    x = 32,504.09

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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.