Home / 82,175.33-123,278.97-31,570.67

Finding the Fourth Proportional to 82,175.33, 123,278.97 and 31,570.67

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Solution

The fourth proportional to 82,175.33, 123,278.97 and 31,570.67 is: 47,362.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,175.33 : 123,278.97 = 31,570.67 : x
  2. Step 2: Convert to fraction form
    82,175.33/123,278.97 = 31,570.67/x
  3. Step 3: Cross multiply
    82,175.33x = 123,278.97 × 31,570.67
  4. Step 4: Simplify right side
    82,175.33x = 3,891,999,063.42
  5. Step 5: Solve for x
    x = 3,891,999,063.42/82,175.33
  6. Step 6: Final answer
    x = 47,362.14

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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.