Home / 54,540.10-81,810.15-28,252.90

Finding the Fourth Proportional to 54,540.10, 81,810.15 and 28,252.90

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Solution

The fourth proportional to 54,540.10, 81,810.15 and 28,252.90 is: 42,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,540.10 : 81,810.15 = 28,252.90 : x
  2. Step 2: Convert to fraction form
    54,540.10/81,810.15 = 28,252.90/x
  3. Step 3: Cross multiply
    54,540.10x = 81,810.15 × 28,252.90
  4. Step 4: Simplify right side
    54,540.10x = 2,311,373,986.94
  5. Step 5: Solve for x
    x = 2,311,373,986.94/54,540.10
  6. Step 6: Final answer
    x = 42,379.35

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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.