Home / 90,813.75-136,232.54-30,003.82

Finding the Fourth Proportional to 90,813.75, 136,232.54 and 30,003.82

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Solution

The fourth proportional to 90,813.75, 136,232.54 and 30,003.82 is: 45,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813.75 : 136,232.54 = 30,003.82 : x
  2. Step 2: Convert to fraction form
    90,813.75/136,232.54 = 30,003.82/x
  3. Step 3: Cross multiply
    90,813.75x = 136,232.54 × 30,003.82
  4. Step 4: Simplify right side
    90,813.75x = 4,087,496,608.30
  5. Step 5: Solve for x
    x = 4,087,496,608.30/90,813.75
  6. Step 6: Final answer
    x = 45,009.67

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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.