Home / 77,247.09-106,516.68-67,085.85

Finding the Fourth Proportional to 77,247.09, 106,516.68 and 67,085.85

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Solution

The fourth proportional to 77,247.09, 106,516.68 and 67,085.85 is: 92,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,247.09 : 106,516.68 = 67,085.85 : x
  2. Step 2: Convert to fraction form
    77,247.09/106,516.68 = 67,085.85/x
  3. Step 3: Cross multiply
    77,247.09x = 106,516.68 × 67,085.85
  4. Step 4: Simplify right side
    77,247.09x = 7,145,762,016.98
  5. Step 5: Solve for x
    x = 7,145,762,016.98/77,247.09
  6. Step 6: Final answer
    x = 92,505.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.