Home / 76,906.81-106,118.68-51,372.22

Finding the Fourth Proportional to 76,906.81, 106,118.68 and 51,372.22

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Solution

The fourth proportional to 76,906.81, 106,118.68 and 51,372.22 is: 70,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,906.81 : 106,118.68 = 51,372.22 : x
  2. Step 2: Convert to fraction form
    76,906.81/106,118.68 = 51,372.22/x
  3. Step 3: Cross multiply
    76,906.81x = 106,118.68 × 51,372.22
  4. Step 4: Simplify right side
    76,906.81x = 5,451,551,644.48
  5. Step 5: Solve for x
    x = 5,451,551,644.48/76,906.81
  6. Step 6: Final answer
    x = 70,885.16

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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.