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Finding the Fourth Proportional to 79,085.52, 117,829.62 and 75,323.88

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Solution

The fourth proportional to 79,085.52, 117,829.62 and 75,323.88 is: 112,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,085.52 : 117,829.62 = 75,323.88 : x
  2. Step 2: Convert to fraction form
    79,085.52/117,829.62 = 75,323.88/x
  3. Step 3: Cross multiply
    79,085.52x = 117,829.62 × 75,323.88
  4. Step 4: Simplify right side
    79,085.52x = 8,875,384,157.33
  5. Step 5: Solve for x
    x = 8,875,384,157.33/79,085.52
  6. Step 6: Final answer
    x = 112,225.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.