Home / 75,039.21-112,517.28-30,697.11

Finding the Fourth Proportional to 75,039.21, 112,517.28 and 30,697.11

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Solution

The fourth proportional to 75,039.21, 112,517.28 and 30,697.11 is: 46,028.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,039.21 : 112,517.28 = 30,697.11 : x
  2. Step 2: Convert to fraction form
    75,039.21/112,517.28 = 30,697.11/x
  3. Step 3: Cross multiply
    75,039.21x = 112,517.28 × 30,697.11
  4. Step 4: Simplify right side
    75,039.21x = 3,453,955,321.06
  5. Step 5: Solve for x
    x = 3,453,955,321.06/75,039.21
  6. Step 6: Final answer
    x = 46,028.67

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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.