Home / 84,129.20-116,106.48-62,871.56

Finding the Fourth Proportional to 84,129.20, 116,106.48 and 62,871.56

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Solution

The fourth proportional to 84,129.20, 116,106.48 and 62,871.56 is: 86,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,129.20 : 116,106.48 = 62,871.56 : x
  2. Step 2: Convert to fraction form
    84,129.20/116,106.48 = 62,871.56/x
  3. Step 3: Cross multiply
    84,129.20x = 116,106.48 × 62,871.56
  4. Step 4: Simplify right side
    84,129.20x = 7,299,795,523.71
  5. Step 5: Solve for x
    x = 7,299,795,523.71/84,129.20
  6. Step 6: Final answer
    x = 86,768.87

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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.