Home / 72,169.84-108,252.33-25,421.50

Finding the Fourth Proportional to 72,169.84, 108,252.33 and 25,421.50

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Solution

The fourth proportional to 72,169.84, 108,252.33 and 25,421.50 is: 38,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.84 : 108,252.33 = 25,421.50 : x
  2. Step 2: Convert to fraction form
    72,169.84/108,252.33 = 25,421.50/x
  3. Step 3: Cross multiply
    72,169.84x = 108,252.33 × 25,421.50
  4. Step 4: Simplify right side
    72,169.84x = 2,751,936,607.10
  5. Step 5: Solve for x
    x = 2,751,936,607.10/72,169.84
  6. Step 6: Final answer
    x = 38,131.39

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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.