Home / 84,664.96-116,814-66,704.20

Finding the Fourth Proportional to 84,664.96, 116,814 and 66,704.20

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Solution

The fourth proportional to 84,664.96, 116,814 and 66,704.20 is: 92,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,664.96 : 116,814 = 66,704.20 : x
  2. Step 2: Convert to fraction form
    84,664.96/116,814 = 66,704.20/x
  3. Step 3: Cross multiply
    84,664.96x = 116,814 × 66,704.20
  4. Step 4: Simplify right side
    84,664.96x = 7,791,984,418.80
  5. Step 5: Solve for x
    x = 7,791,984,418.80/84,664.96
  6. Step 6: Final answer
    x = 92,033.17

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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.