Home / 45,105.81-67,667.03-15,117.12

Finding the Fourth Proportional to 45,105.81, 67,667.03 and 15,117.12

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Solution

The fourth proportional to 45,105.81, 67,667.03 and 15,117.12 is: 22,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.81 : 67,667.03 = 15,117.12 : x
  2. Step 2: Convert to fraction form
    45,105.81/67,667.03 = 15,117.12/x
  3. Step 3: Cross multiply
    45,105.81x = 67,667.03 × 15,117.12
  4. Step 4: Simplify right side
    45,105.81x = 1,022,930,536.97
  5. Step 5: Solve for x
    x = 1,022,930,536.97/45,105.81
  6. Step 6: Final answer
    x = 22,678.47

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Double scale
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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.