Home / 54,322.12-74,967.99-30,448.80

Finding the Fourth Proportional to 54,322.12, 74,967.99 and 30,448.80

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Solution

The fourth proportional to 54,322.12, 74,967.99 and 30,448.80 is: 42,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,322.12 : 74,967.99 = 30,448.80 : x
  2. Step 2: Convert to fraction form
    54,322.12/74,967.99 = 30,448.80/x
  3. Step 3: Cross multiply
    54,322.12x = 74,967.99 × 30,448.80
  4. Step 4: Simplify right side
    54,322.12x = 2,282,685,333.91
  5. Step 5: Solve for x
    x = 2,282,685,333.91/54,322.12
  6. Step 6: Final answer
    x = 42,021.29

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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.