Home / 82,960.26-124,440.36-20,630.76

Finding the Fourth Proportional to 82,960.26, 124,440.36 and 20,630.76

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Solution

The fourth proportional to 82,960.26, 124,440.36 and 20,630.76 is: 30,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,960.26 : 124,440.36 = 20,630.76 : x
  2. Step 2: Convert to fraction form
    82,960.26/124,440.36 = 20,630.76/x
  3. Step 3: Cross multiply
    82,960.26x = 124,440.36 × 20,630.76
  4. Step 4: Simplify right side
    82,960.26x = 2,567,299,201.47
  5. Step 5: Solve for x
    x = 2,567,299,201.47/82,960.26
  6. Step 6: Final answer
    x = 30,946.13

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Double scale
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Similar ratio
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1.5x scale

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.