Home / 43,074.29-64,612.64-11,909.54

Finding the Fourth Proportional to 43,074.29, 64,612.64 and 11,909.54

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Solution

The fourth proportional to 43,074.29, 64,612.64 and 11,909.54 is: 17,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,074.29 : 64,612.64 = 11,909.54 : x
  2. Step 2: Convert to fraction form
    43,074.29/64,612.64 = 11,909.54/x
  3. Step 3: Cross multiply
    43,074.29x = 64,612.64 × 11,909.54
  4. Step 4: Simplify right side
    43,074.29x = 769,506,437.97
  5. Step 5: Solve for x
    x = 769,506,437.97/43,074.29
  6. Step 6: Final answer
    x = 17,864.64

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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.