Home / 54,394.08-75,063.96-30,520.80

Finding the Fourth Proportional to 54,394.08, 75,063.96 and 30,520.80

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Solution

The fourth proportional to 54,394.08, 75,063.96 and 30,520.80 is: 42,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,394.08 : 75,063.96 = 30,520.80 : x
  2. Step 2: Convert to fraction form
    54,394.08/75,063.96 = 30,520.80/x
  3. Step 3: Cross multiply
    54,394.08x = 75,063.96 × 30,520.80
  4. Step 4: Simplify right side
    54,394.08x = 2,291,012,110.37
  5. Step 5: Solve for x
    x = 2,291,012,110.37/54,394.08
  6. Step 6: Final answer
    x = 42,118.78

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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.