Home / 76,990.23-115,492.59-30,232.17

Finding the Fourth Proportional to 76,990.23, 115,492.59 and 30,232.17

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Solution

The fourth proportional to 76,990.23, 115,492.59 and 30,232.17 is: 45,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,990.23 : 115,492.59 = 30,232.17 : x
  2. Step 2: Convert to fraction form
    76,990.23/115,492.59 = 30,232.17/x
  3. Step 3: Cross multiply
    76,990.23x = 115,492.59 × 30,232.17
  4. Step 4: Simplify right side
    76,990.23x = 3,491,591,614.62
  5. Step 5: Solve for x
    x = 3,491,591,614.62/76,990.23
  6. Step 6: Final answer
    x = 45,351.10

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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.