Home / 43,105.20-64,566.96-19,751.28

Finding the Fourth Proportional to 43,105.20, 64,566.96 and 19,751.28

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Solution

The fourth proportional to 43,105.20, 64,566.96 and 19,751.28 is: 29,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,105.20 : 64,566.96 = 19,751.28 : x
  2. Step 2: Convert to fraction form
    43,105.20/64,566.96 = 19,751.28/x
  3. Step 3: Cross multiply
    43,105.20x = 64,566.96 × 19,751.28
  4. Step 4: Simplify right side
    43,105.20x = 1,275,280,105.71
  5. Step 5: Solve for x
    x = 1,275,280,105.71/43,105.20
  6. Step 6: Final answer
    x = 29,585.30

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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.