Home / 54,814.08-75,643.20-30,940.48

Finding the Fourth Proportional to 54,814.08, 75,643.20 and 30,940.48

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Solution

The fourth proportional to 54,814.08, 75,643.20 and 30,940.48 is: 42,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,814.08 : 75,643.20 = 30,940.48 : x
  2. Step 2: Convert to fraction form
    54,814.08/75,643.20 = 30,940.48/x
  3. Step 3: Cross multiply
    54,814.08x = 75,643.20 × 30,940.48
  4. Step 4: Simplify right side
    54,814.08x = 2,340,436,916.74
  5. Step 5: Solve for x
    x = 2,340,436,916.74/54,814.08
  6. Step 6: Final answer
    x = 42,697.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.