Home / 68,412.22-94,424.61-40,127.02

Finding the Fourth Proportional to 68,412.22, 94,424.61 and 40,127.02

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Solution

The fourth proportional to 68,412.22, 94,424.61 and 40,127.02 is: 55,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.22 : 94,424.61 = 40,127.02 : x
  2. Step 2: Convert to fraction form
    68,412.22/94,424.61 = 40,127.02/x
  3. Step 3: Cross multiply
    68,412.22x = 94,424.61 × 40,127.02
  4. Step 4: Simplify right side
    68,412.22x = 3,788,978,213.96
  5. Step 5: Solve for x
    x = 3,788,978,213.96/68,412.22
  6. Step 6: Final answer
    x = 55,384.52

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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.