Home / 79,042.20-118,487.70-39,559.56

Finding the Fourth Proportional to 79,042.20, 118,487.70 and 39,559.56

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Solution

The fourth proportional to 79,042.20, 118,487.70 and 39,559.56 is: 59,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.20 : 118,487.70 = 39,559.56 : x
  2. Step 2: Convert to fraction form
    79,042.20/118,487.70 = 39,559.56/x
  3. Step 3: Cross multiply
    79,042.20x = 118,487.70 × 39,559.56
  4. Step 4: Simplify right side
    79,042.20x = 4,687,321,277.41
  5. Step 5: Solve for x
    x = 4,687,321,277.41/79,042.20
  6. Step 6: Final answer
    x = 59,301.50

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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.