Home / 45,387.20-68,107.44-19,089.92

Finding the Fourth Proportional to 45,387.20, 68,107.44 and 19,089.92

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Solution

The fourth proportional to 45,387.20, 68,107.44 and 19,089.92 is: 28,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,387.20 : 68,107.44 = 19,089.92 : x
  2. Step 2: Convert to fraction form
    45,387.20/68,107.44 = 19,089.92/x
  3. Step 3: Cross multiply
    45,387.20x = 68,107.44 × 19,089.92
  4. Step 4: Simplify right side
    45,387.20x = 1,300,165,581.00
  5. Step 5: Solve for x
    x = 1,300,165,581.00/45,387.20
  6. Step 6: Final answer
    x = 28,646.08

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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.