Home / 84,005.28-126,060.68-34,085.60

Finding the Fourth Proportional to 84,005.28, 126,060.68 and 34,085.60

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Solution

The fourth proportional to 84,005.28, 126,060.68 and 34,085.60 is: 51,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,005.28 : 126,060.68 = 34,085.60 : x
  2. Step 2: Convert to fraction form
    84,005.28/126,060.68 = 34,085.60/x
  3. Step 3: Cross multiply
    84,005.28x = 126,060.68 × 34,085.60
  4. Step 4: Simplify right side
    84,005.28x = 4,296,853,914.21
  5. Step 5: Solve for x
    x = 4,296,853,914.21/84,005.28
  6. Step 6: Final answer
    x = 51,149.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.