Home / 82,424.16-123,636.24-40,861.44

Finding the Fourth Proportional to 82,424.16, 123,636.24 and 40,861.44

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Solution

The fourth proportional to 82,424.16, 123,636.24 and 40,861.44 is: 61,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,424.16 : 123,636.24 = 40,861.44 : x
  2. Step 2: Convert to fraction form
    82,424.16/123,636.24 = 40,861.44/x
  3. Step 3: Cross multiply
    82,424.16x = 123,636.24 × 40,861.44
  4. Step 4: Simplify right side
    82,424.16x = 5,051,954,802.59
  5. Step 5: Solve for x
    x = 5,051,954,802.59/82,424.16
  6. Step 6: Final answer
    x = 61,292.16

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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.