Home / 78,871.26-118,309.05-32,124.54

Finding the Fourth Proportional to 78,871.26, 118,309.05 and 32,124.54

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Solution

The fourth proportional to 78,871.26, 118,309.05 and 32,124.54 is: 48,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,871.26 : 118,309.05 = 32,124.54 : x
  2. Step 2: Convert to fraction form
    78,871.26/118,309.05 = 32,124.54/x
  3. Step 3: Cross multiply
    78,871.26x = 118,309.05 × 32,124.54
  4. Step 4: Simplify right side
    78,871.26x = 3,800,623,809.09
  5. Step 5: Solve for x
    x = 3,800,623,809.09/78,871.26
  6. Step 6: Final answer
    x = 48,187.69

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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.