Home / 54,005.10-81,007.65-49,412.40

Finding the Fourth Proportional to 54,005.10, 81,007.65 and 49,412.40

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Solution

The fourth proportional to 54,005.10, 81,007.65 and 49,412.40 is: 74,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,005.10 : 81,007.65 = 49,412.40 : x
  2. Step 2: Convert to fraction form
    54,005.10/81,007.65 = 49,412.40/x
  3. Step 3: Cross multiply
    54,005.10x = 81,007.65 × 49,412.40
  4. Step 4: Simplify right side
    54,005.10x = 4,002,782,404.86
  5. Step 5: Solve for x
    x = 4,002,782,404.86/54,005.10
  6. Step 6: Final answer
    x = 74,118.60

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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.