Home / 82,427.57-123,449.07-60,185.78

Finding the Fourth Proportional to 82,427.57, 123,449.07 and 60,185.78

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Solution

The fourth proportional to 82,427.57, 123,449.07 and 60,185.78 is: 90,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,427.57 : 123,449.07 = 60,185.78 : x
  2. Step 2: Convert to fraction form
    82,427.57/123,449.07 = 60,185.78/x
  3. Step 3: Cross multiply
    82,427.57x = 123,449.07 × 60,185.78
  4. Step 4: Simplify right side
    82,427.57x = 7,429,877,950.98
  5. Step 5: Solve for x
    x = 7,429,877,950.98/82,427.57
  6. Step 6: Final answer
    x = 90,138.27

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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.