Home / 78,232.52-117,296.94-28,306.12

Finding the Fourth Proportional to 78,232.52, 117,296.94 and 28,306.12

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Solution

The fourth proportional to 78,232.52, 117,296.94 and 28,306.12 is: 42,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,232.52 : 117,296.94 = 28,306.12 : x
  2. Step 2: Convert to fraction form
    78,232.52/117,296.94 = 28,306.12/x
  3. Step 3: Cross multiply
    78,232.52x = 117,296.94 × 28,306.12
  4. Step 4: Simplify right side
    78,232.52x = 3,320,221,218.23
  5. Step 5: Solve for x
    x = 3,320,221,218.23/78,232.52
  6. Step 6: Final answer
    x = 42,440.42

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1.5x scale

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.