Home / 45,857.43-68,779.05-18,842.51

Finding the Fourth Proportional to 45,857.43, 68,779.05 and 18,842.51

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Solution

The fourth proportional to 45,857.43, 68,779.05 and 18,842.51 is: 28,260.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,857.43 : 68,779.05 = 18,842.51 : x
  2. Step 2: Convert to fraction form
    45,857.43/68,779.05 = 18,842.51/x
  3. Step 3: Cross multiply
    45,857.43x = 68,779.05 × 18,842.51
  4. Step 4: Simplify right side
    45,857.43x = 1,295,969,593.52
  5. Step 5: Solve for x
    x = 1,295,969,593.52/45,857.43
  6. Step 6: Final answer
    x = 28,260.84

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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.