Home / 78,286.91-117,436.68-22,127.46

Finding the Fourth Proportional to 78,286.91, 117,436.68 and 22,127.46

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Solution

The fourth proportional to 78,286.91, 117,436.68 and 22,127.46 is: 33,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286.91 : 117,436.68 = 22,127.46 : x
  2. Step 2: Convert to fraction form
    78,286.91/117,436.68 = 22,127.46/x
  3. Step 3: Cross multiply
    78,286.91x = 117,436.68 × 22,127.46
  4. Step 4: Simplify right side
    78,286.91x = 2,598,575,439.23
  5. Step 5: Solve for x
    x = 2,598,575,439.23/78,286.91
  6. Step 6: Final answer
    x = 33,192.98

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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.