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Finding the Fourth Proportional to 54,693.40, 82,040.10 and 40,869.40

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Solution

The fourth proportional to 54,693.40, 82,040.10 and 40,869.40 is: 61,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,693.40 : 82,040.10 = 40,869.40 : x
  2. Step 2: Convert to fraction form
    54,693.40/82,040.10 = 40,869.40/x
  3. Step 3: Cross multiply
    54,693.40x = 82,040.10 × 40,869.40
  4. Step 4: Simplify right side
    54,693.40x = 3,352,929,662.94
  5. Step 5: Solve for x
    x = 3,352,929,662.94/54,693.40
  6. Step 6: Final answer
    x = 61,304.10

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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.