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Finding the Fourth Proportional to 48,679, 67,179.36 and 27,457.78

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Solution

The fourth proportional to 48,679, 67,179.36 and 27,457.78 is: 37,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,679 : 67,179.36 = 27,457.78 : x
  2. Step 2: Convert to fraction form
    48,679/67,179.36 = 27,457.78/x
  3. Step 3: Cross multiply
    48,679x = 67,179.36 × 27,457.78
  4. Step 4: Simplify right side
    48,679x = 1,844,596,087.42
  5. Step 5: Solve for x
    x = 1,844,596,087.42/48,679
  6. Step 6: Final answer
    x = 37,893.06

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1.5x scale

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.