Home / 54,116.55-81,010.80-40,885.20

Finding the Fourth Proportional to 54,116.55, 81,010.80 and 40,885.20

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Solution

The fourth proportional to 54,116.55, 81,010.80 and 40,885.20 is: 61,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,116.55 : 81,010.80 = 40,885.20 : x
  2. Step 2: Convert to fraction form
    54,116.55/81,010.80 = 40,885.20/x
  3. Step 3: Cross multiply
    54,116.55x = 81,010.80 × 40,885.20
  4. Step 4: Simplify right side
    54,116.55x = 3,312,142,760.16
  5. Step 5: Solve for x
    x = 3,312,142,760.16/54,116.55
  6. Step 6: Final answer
    x = 61,203.88

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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.