Home / 54,500.58-81,788.09-18,961.56

Finding the Fourth Proportional to 54,500.58, 81,788.09 and 18,961.56

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Solution

The fourth proportional to 54,500.58, 81,788.09 and 18,961.56 is: 28,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,500.58 : 81,788.09 = 18,961.56 : x
  2. Step 2: Convert to fraction form
    54,500.58/81,788.09 = 18,961.56/x
  3. Step 3: Cross multiply
    54,500.58x = 81,788.09 × 18,961.56
  4. Step 4: Simplify right side
    54,500.58x = 1,550,829,681.01
  5. Step 5: Solve for x
    x = 1,550,829,681.01/54,500.58
  6. Step 6: Final answer
    x = 28,455.29

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1.5x scale

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.