Home / 54,399.62-75,072.84-30,528.20

Finding the Fourth Proportional to 54,399.62, 75,072.84 and 30,528.20

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Solution

The fourth proportional to 54,399.62, 75,072.84 and 30,528.20 is: 42,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,399.62 : 75,072.84 = 30,528.20 : x
  2. Step 2: Convert to fraction form
    54,399.62/75,072.84 = 30,528.20/x
  3. Step 3: Cross multiply
    54,399.62x = 75,072.84 × 30,528.20
  4. Step 4: Simplify right side
    54,399.62x = 2,291,838,674.09
  5. Step 5: Solve for x
    x = 2,291,838,674.09/54,399.62
  6. Step 6: Final answer
    x = 42,129.68

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1.5x scale

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.