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Finding the Fourth Proportional to 79,281.81, 118,888.11 and 29,999.25

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Solution

The fourth proportional to 79,281.81, 118,888.11 and 29,999.25 is: 44,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.81 : 118,888.11 = 29,999.25 : x
  2. Step 2: Convert to fraction form
    79,281.81/118,888.11 = 29,999.25/x
  3. Step 3: Cross multiply
    79,281.81x = 118,888.11 × 29,999.25
  4. Step 4: Simplify right side
    79,281.81x = 3,566,554,133.92
  5. Step 5: Solve for x
    x = 3,566,554,133.92/79,281.81
  6. Step 6: Final answer
    x = 44,985.78

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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.