Home / 76,728.62-115,085.64-26,799.50

Finding the Fourth Proportional to 76,728.62, 115,085.64 and 26,799.50

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Solution

The fourth proportional to 76,728.62, 115,085.64 and 26,799.50 is: 40,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,728.62 : 115,085.64 = 26,799.50 : x
  2. Step 2: Convert to fraction form
    76,728.62/115,085.64 = 26,799.50/x
  3. Step 3: Cross multiply
    76,728.62x = 115,085.64 × 26,799.50
  4. Step 4: Simplify right side
    76,728.62x = 3,084,237,609.18
  5. Step 5: Solve for x
    x = 3,084,237,609.18/76,728.62
  6. Step 6: Final answer
    x = 40,196.70

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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.