Home / 84,142.75-116,096.28-51,428.88

Finding the Fourth Proportional to 84,142.75, 116,096.28 and 51,428.88

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Solution

The fourth proportional to 84,142.75, 116,096.28 and 51,428.88 is: 70,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,142.75 : 116,096.28 = 51,428.88 : x
  2. Step 2: Convert to fraction form
    84,142.75/116,096.28 = 51,428.88/x
  3. Step 3: Cross multiply
    84,142.75x = 116,096.28 × 51,428.88
  4. Step 4: Simplify right side
    84,142.75x = 5,970,701,652.57
  5. Step 5: Solve for x
    x = 5,970,701,652.57/84,142.75
  6. Step 6: Final answer
    x = 70,959.19

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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.