Home / 45,931.05-68,722.70-27,221.13

Finding the Fourth Proportional to 45,931.05, 68,722.70 and 27,221.13

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Solution

The fourth proportional to 45,931.05, 68,722.70 and 27,221.13 is: 40,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,931.05 : 68,722.70 = 27,221.13 : x
  2. Step 2: Convert to fraction form
    45,931.05/68,722.70 = 27,221.13/x
  3. Step 3: Cross multiply
    45,931.05x = 68,722.70 × 27,221.13
  4. Step 4: Simplify right side
    45,931.05x = 1,870,709,414.55
  5. Step 5: Solve for x
    x = 1,870,709,414.55/45,931.05
  6. Step 6: Final answer
    x = 40,728.64

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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.