Home / 76,670.43-115,000.79-36,717.89

Finding the Fourth Proportional to 76,670.43, 115,000.79 and 36,717.89

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Solution

The fourth proportional to 76,670.43, 115,000.79 and 36,717.89 is: 55,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,670.43 : 115,000.79 = 36,717.89 : x
  2. Step 2: Convert to fraction form
    76,670.43/115,000.79 = 36,717.89/x
  3. Step 3: Cross multiply
    76,670.43x = 115,000.79 × 36,717.89
  4. Step 4: Simplify right side
    76,670.43x = 4,222,585,598.54
  5. Step 5: Solve for x
    x = 4,222,585,598.54/76,670.43
  6. Step 6: Final answer
    x = 55,074.50

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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.