Home / 45,109.12-67,667.67-11,829.07

Finding the Fourth Proportional to 45,109.12, 67,667.67 and 11,829.07

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Solution

The fourth proportional to 45,109.12, 67,667.67 and 11,829.07 is: 17,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,109.12 : 67,667.67 = 11,829.07 : x
  2. Step 2: Convert to fraction form
    45,109.12/67,667.67 = 11,829.07/x
  3. Step 3: Cross multiply
    45,109.12x = 67,667.67 × 11,829.07
  4. Step 4: Simplify right side
    45,109.12x = 800,445,605.17
  5. Step 5: Solve for x
    x = 800,445,605.17/45,109.12
  6. Step 6: Final answer
    x = 17,744.65

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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.