Home / 68,842.90-103,325.10-40,727.80

Finding the Fourth Proportional to 68,842.90, 103,325.10 and 40,727.80

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Solution

The fourth proportional to 68,842.90, 103,325.10 and 40,727.80 is: 61,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,842.90 : 103,325.10 = 40,727.80 : x
  2. Step 2: Convert to fraction form
    68,842.90/103,325.10 = 40,727.80/x
  3. Step 3: Cross multiply
    68,842.90x = 103,325.10 × 40,727.80
  4. Step 4: Simplify right side
    68,842.90x = 4,208,204,007.78
  5. Step 5: Solve for x
    x = 4,208,204,007.78/68,842.90
  6. Step 6: Final answer
    x = 61,127.64

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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.