Home / 54,751.20-81,730.79-48,108.20

Finding the Fourth Proportional to 54,751.20, 81,730.79 and 48,108.20

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Solution

The fourth proportional to 54,751.20, 81,730.79 and 48,108.20 is: 71,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,751.20 : 81,730.79 = 48,108.20 : x
  2. Step 2: Convert to fraction form
    54,751.20/81,730.79 = 48,108.20/x
  3. Step 3: Cross multiply
    54,751.20x = 81,730.79 × 48,108.20
  4. Step 4: Simplify right side
    54,751.20x = 3,931,920,542.28
  5. Step 5: Solve for x
    x = 3,931,920,542.28/54,751.20
  6. Step 6: Final answer
    x = 71,814.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.