Home / 82,982.79-114,515.73-47,172.80

Finding the Fourth Proportional to 82,982.79, 114,515.73 and 47,172.80

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Solution

The fourth proportional to 82,982.79, 114,515.73 and 47,172.80 is: 65,098.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,982.79 : 114,515.73 = 47,172.80 : x
  2. Step 2: Convert to fraction form
    82,982.79/114,515.73 = 47,172.80/x
  3. Step 3: Cross multiply
    82,982.79x = 114,515.73 × 47,172.80
  4. Step 4: Simplify right side
    82,982.79x = 5,402,027,914.43
  5. Step 5: Solve for x
    x = 5,402,027,914.43/82,982.79
  6. Step 6: Final answer
    x = 65,098.17

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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.