Home / 76,167.49-105,311.78-66,708.94

Finding the Fourth Proportional to 76,167.49, 105,311.78 and 66,708.94

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Solution

The fourth proportional to 76,167.49, 105,311.78 and 66,708.94 is: 92,234.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,167.49 : 105,311.78 = 66,708.94 : x
  2. Step 2: Convert to fraction form
    76,167.49/105,311.78 = 66,708.94/x
  3. Step 3: Cross multiply
    76,167.49x = 105,311.78 × 66,708.94
  4. Step 4: Simplify right side
    76,167.49x = 7,025,237,116.81
  5. Step 5: Solve for x
    x = 7,025,237,116.81/76,167.49
  6. Step 6: Final answer
    x = 92,234.07

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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.